Electronics and Telecommunications Research Institute

Republic of Korea

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H04B 7/26 - Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile 213
H04L 27/26 - Systems using multi-frequency codes 131
H04N 7/24 - Systems for the transmission of television signals using pulse code modulation 113
H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] 111
H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock 107
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1.

SPECTROMETRY APPARATUS AND SPECTROMETRY METHOD USING TIME-RESOLVED CODING

      
Application Number KR2020009244
Publication Number 2021/085801
Status In Force
Filing Date 2020-07-14
Publication Date 2021-05-06
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Won Kyoung
  • Seo, Hong-Seok

Abstract

A spectrometry apparatus according to one embodiment of the present invention comprises: a laser emission device, which receives orthogonal codes including a series of bits respectively having a first value and a second value, generates a control signal having a pulse, of a width shorter than that of a bit section, in the bit section corresponding to the bit having the first value from among a series of bits, generates, through a trigger, a pulse laser beam, of a width shorter than that of the bit section, from the pulse included in the control signal, and emits, at a sample, an incident beam including the generated pulse laser beam; and a detector, which receives a detection signal and the orthogonal codes generated from the sample at which the incident beam is emitted, generates, on the basis of the orthogonal codes, an orthogonal code signal having a waveform that is the same as that of the incident beam, and demodulates a Raman signal on the basis of the correlation between the generated orthogonal code signal and the Raman signal included in the detection signal.

IPC Classes  ?

  • G01N 21/65 - Raman scattering
  • G01N 21/01 - Arrangements or apparatus for facilitating the optical investigation
  • G01N 33/48 - Biological material, e.g. blood, urine; Haemocytometers

2.

ARTIFICIAL INTELLIGENCE INFERENCE APPARATUS AND METHOD

      
Application Number KR2020013250
Publication Number 2021/071160
Status In Force
Filing Date 2020-09-28
Publication Date 2021-04-15
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Cho, Chang-Sik
  • Park, Jae-Bok
  • Yoo, Seung-Mok
  • Yoon, Seok-Jin
  • Lee, Kyung-Hee

Abstract

An embodiment discloses an artificial intelligence inference apparatus and method. An embodiment is an artificial intelligence inference method. The artificial intelligence inference method may comprise the steps: converting a trained neural network and parameters into an execution code of a high-level language independent of a learning framework; separating the execution code into a general purpose language (GPL) code and a domain specific language (DSL) code according to whether or not an acceleration operation is needed; and generating the separated GPL code and DSL code as a target code optimized for hardware.

IPC Classes  ?

  • G06N 3/063 - Physical realisation, i.e. hardware implementation of neural networks, neurons or parts of neurons using electronic means
  • G06N 3/08 - Learning methods
  • G06N 5/04 - Inference methods or devices

3.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020013873
Publication Number 2021/071339
Status In Force
Filing Date 2020-10-12
Publication Date 2021-04-15
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Jeon, Byeung Woo
  • Park, Jee Yoon

Abstract

In the present disclosure, provided is a video decoding method comprising the steps of: obtaining a chroma residual connection flag of a current block indicating whether or not a chroma residual connection mode is applied to the current block; obtaining, from a bitstream, a transform skip mode flag for a luma component of the current block and a transform skip mode flag for a first chroma component; determining whether or not to apply a transform skip mode for a second chroma component of the current block according to the transform skip mode flag for the first chroma component, when it is indicated that the chroma residual connection mode is applied to the current block; and obtaining a transform skip mode flag for the second chroma component of the current block from the bitstream, when it is indicated that the chroma residual connection mode is not applied to the current block.

IPC Classes  ?

  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/12 - Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

4.

TRANSFORM INFORMATION ENCODING/DECODING METHOD AND DEVICE, AND BITSTREAM STORAGE MEDIUM

      
Application Number KR2020013879
Publication Number 2021/071342
Status In Force
Filing Date 2020-10-12
Publication Date 2021-04-15
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kang, Jung-Won
  • Lim, Sung-Chang
  • Lee, Jin-Ho
  • Lee, Ha-Hyun

Abstract

Disclosed are a transform information encoding/decoding method and device, and a storage medium. Transform comprises primary transform and secondary transform. A primary transform type and a secondary transform type are selected from among multiple different types. A target block is transformed according to the selected primary transform type and secondary transform type. The primary transform type and the secondary transform type to be applied to the target block are signaled by using transform information such as a primary transform method index and a secondary transform method index.

IPC Classes  ?

  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

5.

DEEP NEUTRAL NETWORK STRUCTURE LEARNING AND SIMPLIFYING METHOD

      
Application Number KR2020013304
Publication Number 2021/066504
Status In Force
Filing Date 2020-09-29
Publication Date 2021-04-08
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor Lee, Yong Jin

Abstract

The present invention relates to a deep neural network structure learning and simplifying method. The deep neural network structure learning and simplifying method according to one embodiment of the present invention comprises the steps of: (a) generating a parameter for a neural network model; (b) generating an objective function corresponding to the neural network model on the basis of the parameter; and (c) learning the model while performing training on the parameter on the basis of learning data and the objective function.

IPC Classes  ?

6.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020012768
Publication Number 2021/060801
Status In Force
Filing Date 2020-09-22
Publication Date 2021-04-01
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Woong
  • Bang, Gun

Abstract

The present invention relates to an image decoding method. An image decoding method according to an embodiment of the present invention may comprise the steps of: acquiring sub-picture information relating to a current sub-picture through at least one signaling level; and decoding the current sub-picture by using the sub-picture information, wherein the sub-picture information is acquired for each sub-picture to be decoded.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
  • H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
  • H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
  • H04N 19/82 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

7.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020012857
Publication Number 2021/060825
Status In Force
Filing Date 2020-09-23
Publication Date 2021-04-01
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Jeon, Byeung Woo
  • Park, Jee Yoon

Abstract

Provided are an image encoding/decoding method and device. An image decoding method of the present disclosure comprises the steps of: deriving an intra prediction value by performing intra prediction for a current block; deriving an inter prediction value by performing inter prediction for the current block; deriving a combined inter and intra prediction (CIIP) value by calculating the weighted sum of the intra prediction value and inter prediction value; and generating a reconstructed block of the current block by means of the CIIP value, wherein the intra prediction can be performed in a planar mode.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
  • H04N 19/513 - Processing of motion vectors
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type

8.

METHOD FOR SHARING MULTILINK IN NEXT-GENERATION WIRELESS LAN

      
Application Number KR2020012476
Publication Number 2021/054712
Status In Force
Filing Date 2020-09-16
Publication Date 2021-03-25
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Hwang, Sung Hyun
  • Kang, Kyu Min
  • Park, Jae Cheol
  • Oh, Jin Hyung
  • Choi, Su Na
  • Kim, Yong Ho
  • Gwak, Yong Su

Abstract

A method for sharing a multilink in a next-generation wireless LAN is disclosed. An operation method of a first communication node comprises the steps of: setting a transmission interval; communicating with a second communication node by using a first link and a second link in the transmission interval; sharing the transmission interval with a third communication node; and communicating with the second communication node by using the first link in the transmission interval.

IPC Classes  ?

  • H04W 74/00 - Wireless channel access, e.g. scheduled or random access
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
  • H04W 72/12 - Wireless traffic scheduling
  • H04W 72/04 - Wireless resource allocation
  • H04W 76/15 - Setup of multiple wireless link connections
  • H04W 84/12 - WLAN [Wireless Local Area Networks]

9.

METHOD, DEVICE AND RECORDING MEDIUM FOR ENCODING/DECODING IMAGE BY PARTITIONING

      
Application Number KR2020012669
Publication Number 2021/054790
Status In Force
Filing Date 2020-09-18
Publication Date 2021-03-25
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung-Won
  • Lee, Ha-Hyun
  • Lim, Sung-Chang
  • Lee, Jin-Ho
  • Park, Gwang-Hoon
  • Kim, Tae-Hyun
  • Lee, Dae-Young
  • Gwun, Woo-Woen
  • Lee, Won-Jun

Abstract

Disclosed are a method, device and recording medium for encoding/decoding an image by partitioning. Various prediction methods and prediction modes may be used for prediction for a block. When a block is partitioned, information relating to partitioning, such as information indicating whether partitioning is performed and information specifying a type of partitioning, is signaled. In addition, when partitioning is applied to a block, in predicting the block, an available prediction method and an available prediction mode may be restricted. For optimization of signaling, multiple pieces of information related to prediction may be signaled, wherein: the multiple pieces of information may have an interdependent relationship; and, in some cases, according to a value of one piece of information, the other pieces of information may be derived to be a particular value, and signaling of the other pieces of information may be omitted. Various methods, in which various pieces of information are efficiently signaled according to the restriction and the interdependent relationship, may be provided.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/124 - Quantisation
  • H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

10.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020012717
Publication Number 2021/054805
Status In Force
Filing Date 2020-09-21
Publication Date 2021-03-25
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Jae Gon
  • Do, Ji Hoon
  • Park, Do Hyeon
  • Yoon, Yong Uk

Abstract

Disclosed in the present specification is an image decoding/encoding method. An image decoding method according to the present invention includes the steps of: generating a first prediction block for the current block; generating a second prediction block for the current block; and using a per-sample weighted sum for the first prediction block and the second prediction block to generate a final prediction sample for the current block, wherein the weight used for the per-sample weighted sum may be determined on the basis of the position of a current brightness sample and a geometric prediction mode (GPM) boundary line dividing the current block.

IPC Classes  ?

  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/55 - Motion estimation with spatial constraints, e.g. at image or region borders
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream

11.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020012734
Publication Number 2021/054811
Status In Force
Filing Date 2020-09-21
Publication Date 2021-03-25
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Dae Yeon
  • Lee, Ju Ock

Abstract

An image decoding/encoding method is disclosed in the present specification. An image decoding method according to the present invention may comprise the steps of: acquiring a single stream including sub-picture information for a plurality of sub-pictures; selecting a sub-picture to be extracted from among the plurality of sub-pictures; determining the single stream as a stream to be extracted; and acquiring, from the stream to be extracted, a sub-stream for the sub-picture to be extracted by removing or using at least one piece of the sub-picture information included in the stream to be extracted.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/573 - Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
  • H04N 19/124 - Quantisation
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction

12.

METHOD, APPARATUS, AND RECORDING MEDIUM FOR ENCODING/DECODING IMAGE BY USING PARTITIONING

      
Application Number KR2020010813
Publication Number 2021/029720
Status In Force
Filing Date 2020-08-13
Publication Date 2021-02-18
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung-Won
  • Lee, Ha-Hyun
  • Lim, Sung-Chang
  • Lee, Jin-Ho
  • Kim, Hui-Yong
  • Park, Gwang-Hoon
  • Kim, Tae-Hyun
  • Lee, Dae-Young
  • Gwun, Woo-Woen
  • Lee, Won-Jun

Abstract

Disclosed are a method, an apparatus, and a recording medium for encoding/decoding an image by using partitioning. Various prediction methods and prediction modes may be used for prediction for a block. When a block is partitioned, information relating to partitioning, such as information indicating whether partitioning is performed and information specifying a type of partitioning, is signaled. In addition, when partitioning is applied to a block, in predicting the block, an available prediction method and an available prediction mode may be restricted. For optimization of signaling, multiple pieces of information related to prediction may be signaled, wherein: the multiple pieces of information may have an interdependent relationship; and, in some cases, according to a value of one piece of information, the other pieces of information may be derived to be a particular value, and signaling of the other pieces of information may be omitted. Various methods, in which various pieces of information are efficiently signaled according to the restriction and the interdependent relationship, may be provided.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

13.

METHOD, APPARATUS, AND RECORDING MEDIUM FOR ENCODING/DECODING IMAGE BY USING GEOMETRIC PARTITIONING

      
Application Number KR2020009745
Publication Number 2021/015581
Status In Force
Filing Date 2020-07-23
Publication Date 2021-01-28
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Woong
  • Lee, Jin-Young
  • Bang, Gun
  • Kim, Hui-Yong

Abstract

A method, an apparatus, and a recording medium for encoding/decoding an image by using a geometric partitioning are disclosed. A target block is geometrically partitioned, and a plurality of partitioned areas may be generated by means of the geometric partitioning. Each partitioned area may have a non-square and non-rectangular shape. Different prediction schemes may be applied with respect to the plurality of partitioned areas. The different prediction schemes for the plurality of partitioned areas may be signaled as explicit information, and may be derived by using information such as a coding parameter for the target block.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream

14.

LINK SETTING METHOD AND DEVICE FOR MULTI-LINK TRANSMISSION IN WIRELESS LAN COMMUNICATION SYSTEM

      
Application Number KR2020009074
Publication Number 2021/010663
Status In Force
Filing Date 2020-07-10
Publication Date 2021-01-21
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Hwang, Sung Hyun
  • Kang, Kyu Min
  • Park, Jae Cheol
  • Oh, Jin Hyung
  • Choi, Su Na
  • Kim, Yong Ho
  • Hong, Han Seul

Abstract

The present invention relates to an operating method of a first communication node in a communication system, comprising the steps of: negotiating with a second communication node with respect to a parameter for multi-link transmission; determining, on the basis of the parameter, a plurality of links for performing the multi-link transmission, and the transmission method by which the multi-link transmission is performed; and transmitting, in the plurality of links, a data frame to the second communication node by means of the transmission method. Therefore, the communication node can efficiently set and change links.

IPC Classes  ?

  • H04W 28/18 - Negotiating wireless communication parameters
  • H04W 76/15 - Setup of multiple wireless link connections
  • H04W 76/20 - Manipulation of established connections
  • H04W 76/19 - Connection re-establishment
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
  • H04W 84/12 - WLAN [Wireless Local Area Networks]

15.

METHOD AND APPARATUS FOR PERFORMING BLOCK ACK IN MULTIPLE LINK OF WIRELESS LAN COMMUNICATION SYSTEM

      
Application Number KR2020009075
Publication Number 2021/010664
Status In Force
Filing Date 2020-07-10
Publication Date 2021-01-21
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Hwang, Sung Hyun
  • Kang, Kyu Min
  • Park, Jae Cheol
  • Oh, Jin Hyung
  • Choi, Su Na
  • Kim, Yong Ho
  • Gwak, Yong Su

Abstract

The present invention relates to a method for operating a first communication node in a wireless local area network (WLAN) supporting a multi-link operation, comprising the steps of: setting a first transmit window size of a first link for transmitting a plurality of frames to a second communication node; transmitting the plurality of frames through the first link; when the state of a channel detected through channel sensing in the second link is an idle state, setting a transmit opportunity (TXOP) in the channel; and when the transmit opportunity is set, performing an agreement with the second communication node on the size of a second transmit window for transmitting the plurality of frames. Therefore, it is possible to improve the performance of a communication system.

IPC Classes  ?

  • H04L 1/18 - Automatic repetition systems, e.g. van Duuren system
  • H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
  • H04W 76/15 - Setup of multiple wireless link connections
  • H04W 84/12 - WLAN [Wireless Local Area Networks]
  • H04W 28/04 - Error control

16.

IMAGE ENCODING/DECODING METHOD AND APPARATUS

      
Application Number KR2020008296
Publication Number 2020/262992
Status In Force
Filing Date 2020-06-25
Publication Date 2020-12-30
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Jeon, Byeung Woo
  • Park, Jee Yoon

Abstract

An image encoding/decoding method and apparatus are provided. An image decoding method of the present disclosure may comprise the steps of: obtaining subblock-based transform use information; when the subblock-based transform use information indicates the use of subblock-based transform, obtaining at least one of subblock-based transform partition information, subblock-based transform partition direction information, and subblock-based transform position information; and performing subblock-based transform on a current block on the basis of at least one of the subblock-based transform partition information, the subblock-based transform partition direction information, and the subblock-based transform position information, wherein the subblock-based transform use information is obtained when each of the width of the current block and the height of the current block is smaller than a maximum transform size.

IPC Classes  ?

  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type

17.

INTRA BLOCK COPY-BASED ENCODING/DECODING METHOD, DEVICE, AND BITSTREAM STORAGE MEDIUM

      
Application Number KR2020007842
Publication Number 2020/256405
Status In Force
Filing Date 2020-06-17
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

Provided are an image encoding/decoding method and device. An image decoding method according to the present invention is characterized by including: a step for acquiring prediction mode information about the current block from a bitstream; a step for deriving an intra block copy prediction mode of the current block by using the prediction mode information about the current block; and a step for recovering the current block on the basis of the intra block copy prediction mode, wherein the intra block copy prediction mode is at least one among a block copy-based skip mode, a block copy-based merge mode, and a block copy-based AMVP mode.

IPC Classes  ?

  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/513 - Processing of motion vectors
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

18.

ADAPTIVE IN-LOOP FILTERING METHOD AND APPARATUS

      
Application Number KR2020007856
Publication Number 2020/256413
Status In Force
Filing Date 2020-06-17
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

In the present disclosure, provided is a video decoding method comprising the steps of: acquiring an adaptive parameter set comprising an ALF set consisting of a plurality of ALFs; determining, from among the adaptive parameter sets, an adaptive parameter set, comprising an ALF set to be applied to a current picture or slice, to be applied to the current picture or slice; determining, from among the adaptive parameter set to be applied to the current picture or slice, an adaptive parameter set, comprising an ALF set to be applied to a current CTB included in the current picture or slice, to be applied to the current CTB; and on the basis of the ALF set of the determined adaptive parameter set to be applied to the current CTB, filtering the current coding tree block, wherein the adaptive parameter set comprises chrominance ALF number information, and the ALF set comprises the number of chrominance ALFs indicated by the chrominance ALF number information.

IPC Classes  ?

  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/82 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/96 - Tree coding, e.g. quad-tree coding

19.

INTER PREDICTION INFORMATION ENCODING/DECODING METHOD AND DEVICE

      
Application Number KR2020007875
Publication Number 2020/256422
Status In Force
Filing Date 2020-06-18
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image encoding/decoding method and device are provided. The image decoding method of the present disclosure may comprise the steps of: decoding a sub-block merge mode indicator of a current block; when the sub-block merge mode indicator does not indicate a sub-block merge mode, decoding a regular merge mode indicator of the current block; and, when the sub-block merge mode indicator indicates the sub-block merge mode, decoding sub-block merge mode information of the current block.

IPC Classes  ?

  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

20.

VIRTUAL BOUNDARY SIGNALING METHOD AND APPARATUS FOR VIDEO ENCODING/DECODING

      
Application Number KR2020007966
Publication Number 2020/256467
Status In Force
Filing Date 2020-06-19
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Bang, Gun
  • Lim, Woong
  • Kim, Hui Yong

Abstract

A video encoding/decoding method and apparatus are provided. A video decoding method according to the present invention comprises the steps of: obtaining, from a bitstream, information on whether virtual boundaries exist for a current block; decoding information on the number of virtual boundaries on the basis of the information on whether the virtual boundaries exist; decoding information on the location of the virtual boundaries on the basis of the information on the number of virtual boundaries; and restoring the current block on the basis of the information on the location of the virtual boundaries.

IPC Classes  ?

  • H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
  • H04N 19/82 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
  • H04N 19/14 - Coding unit complexity, e.g. amount of activity or edge presence estimation
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

21.

IMAGE ENCODING/DECODING METHOD AND APPARATUS

      
Application Number KR2020007987
Publication Number 2020/256479
Status In Force
Filing Date 2020-06-19
Publication Date 2020-12-24
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Park, Do Hyeon
  • Do, Ji Hoon
  • Yoon, Yong Uk

Abstract

Provided are an image encoding/decoding method and apparatus. The image decoding method of the present disclosure may comprise the steps of: acquiring maximum transform block size information; deriving a maximum transform block size on the basis of the maximum transform block size information; and on the basis of the maximum transform block size, and the horizontal size and the vertical size of a current block, determining whether or not a secondary inverse transform is to be applied to the current block.

IPC Classes  ?

  • H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/124 - Quantisation
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

22.

METHOD AND APPARATUS FOR IMAGE ENCODING AND IMAGE DECODING USING AREA SEGMENTATION

      
Application Number KR2020008081
Publication Number 2020/256522
Status In Force
Filing Date 2020-06-22
Publication Date 2020-12-24
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Bang, Gun
  • Lee, Jin-Young
  • Lim, Woong
  • Kim, Hui-Yong

Abstract

Disclosed are a method and an apparatus for image encoding and image decoding using area segmentation. A picture is segmented into a plurality of sub-pictures and encoding and/or decoding is performed for the plurality of sub-pictures generated by segmentation. Encoding and/or decoding for the sub-pictures may be performed independently of each other. Merging and filtering are applied to reconstructed sub-pictures generated by decoding, and a reconstructed picture is generated after merging and filtering the reconstructed sub-pictures.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
  • H04N 19/82 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

23.

METHOD AND APPARATUS FOR IMAGE ENCODING AND IMAGE DECODING USING PREDICTION BASED ON BLOCK TYPE

      
Application Number KR2020008085
Publication Number 2020/256524
Status In Force
Filing Date 2020-06-22
Publication Date 2020-12-24
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Bang, Gun
  • Park, Gwang-Hoon
  • Lim, Woong
  • Kim, Hui-Yong
  • Gwun, Woo-Woen
  • Kim, Tae-Hyun
  • Lee, Dae-Young
  • Lee, Won-Jun

Abstract

Disclosed are a method and apparatus for image encoding and image decoding using prediction based on a block type. Whether or not a prediction mode is available for a target block is determined. The determination is performed on the basis of a type of the target block. When it is determined that the prediction mode is unavailable for the target block, signaling associated with the prediction mode is omitted, and determination of another prediction mode is performed. When it is determined that the prediction mode is available for the target block, information indicating whether or not the prediction mode is used for the target block is signaled.

IPC Classes  ?

  • H04N 19/157 - Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

24.

VIDEO ENCODING/DECODING METHOD AND DEVICE, AND BITSTREAM STORAGE MEDIUM

      
Application Number KR2020008092
Publication Number 2020/256528
Status In Force
Filing Date 2020-06-22
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

Disclosed is a video decoding method comprising: a step for acquiring an intra block copy mode permission flag that indicates whether or not an intra block copy mode is permitted for a current sequence; a step for acquiring information about the maximum number of block vector candidates in a block vector candidate list when the intra block copy mode permission flag indicates that the intra block copy mode is permitted for the current sequence; a step for determining the block vector candidate list of the current block, which includes one or more block vector candidates according to the information about the maximum number of block vector candidates, when the prediction mode of the current block is the intra block copy mode; a step for determining a block vector of the current block from the one or more block vector candidates of the current block candidate list; and a step for determining a prediction block of the current block according to the block vector.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

25.

VIDEO ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020007413
Publication Number 2020/256324
Status In Force
Filing Date 2020-06-08
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong

Abstract

Provided are a video encoding/decoding method and apparatus. According to the present invention, a video decoding method comprises the steps of: obtaining prediction information of a current block from a bitstream; and generating a prediction block of the current block by performing prediction on the basis of the prediction information, wherein the prediction information includes split prediction information of the current block, and the step of generating the prediction block comprises the steps of: obtaining a reference sample from a neighboring block of the current block; applying an interpolation filter to the reference sample; and generating the prediction block by using the reference sample to which the interpolation filter is applied. The interpolation filter may be determined on the basis of the split prediction information of the current block.

IPC Classes  ?

  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component

26.

SUB-BLOCK DIVISION-BASED IMAGE ENCODING/DECODING METHOD AND DEVICE

      
Application Number KR2020007772
Publication Number 2020/256377
Status In Force
Filing Date 2020-06-16
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

Provided are an image encoding/decoding method and device. The image decoding method of the present disclosure includes: a step for acquiring block division information about the current block; a step for dividing the current block into a first sub-block and a second sub-block on the basis of the block division information; a step for deriving motion information about the first sub-block and motion information about the second sub-block; a step for generating a prediction sample of the first sub-block and a prediction sample of the second sub-block on the basis of the motion information about the first sub-block and the motion information about the second sub-block; and a step for obtaining the weighted-sum of the prediction sample of the first sub-block and the prediction sample of the second sub-block to generate a prediction sample of the current block, wherein the block division information may be index information indicating an index of a table that includes information representing a plurality of predefined forms of asymmetric division.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/124 - Quantisation
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

27.

IMAGE ENCODING/DECODING METHOD AND DEVICE USING SECONDARY TRANSFORM, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020007934
Publication Number 2020/256447
Status In Force
Filing Date 2020-06-18
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

Provided in the present disclosure is a video decoding method including: a step for acquiring a transform skip mode flag which indicates whether a transform skip mode is applicable to the current block; a step for determining that a secondary transform/inverse transform is not applicable to the current block when the transform skip mode is applicable to the current block according to the transform skip mode flag; and a step for acquiring a transform matrix index pertaining to the secondary transform/inverse transform of the current block when the transform skip mode is not applicable to the current block according to the transform skip mode flag, and for determining whether the secondary transform/inverse transform is applicable to the current block according to the transform matrix index.

IPC Classes  ?

  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes

28.

INTRA PREDICTION MODE, AND ENTROPY ENCODING/DECODING METHOD AND DEVICE

      
Application Number KR2020007965
Publication Number 2020/256466
Status In Force
Filing Date 2020-06-19
Publication Date 2020-12-24
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Yoon, Yong Uk
  • Park, Do Hyeon

Abstract

An image encoding/decoding method and device are provided. An image decoding method according to the present invention comprises the steps of: acquiring, from a bitstream, prediction mode information about a neighboring block with respect to a current block; deriving a prediction mode of the neighboring block by using the acquired information; and reconstruct the current block on the basis of the prediction mode of the neighboring block.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component

29.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2020007973
Publication Number 2020/256470
Status In Force
Filing Date 2020-06-19
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Woong
  • Bang, Gun
  • Kim, Hui Yong

Abstract

The present specification discloses an image encoding/decoding method and device, and a recording medium for storing a bitstream. The image decoding method of the present invention comprises the steps of: deriving slice mode information for at least one slice included in a current picture; deriving slice quantity information on the basis of the slice mode information; deriving tile information of a current slice on the basis of the slice quantity information; and decoding the current slice on the basis of the tile information, wherein the tile information includes tile index presence information and tile index difference value information, wherein the tile index difference value information is not signaled for the last slice included in the current picture.

IPC Classes  ?

  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]

30.

METHOD, APPARATUS, AND RECORDING MEDIUM FOR ENCODING/DECODING IMAGE

      
Application Number KR2020008006
Publication Number 2020/256491
Status In Force
Filing Date 2020-06-19
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung-Chang
  • Kang, Jung-Won
  • Lee, Ha-Hyun
  • Lee, Jin-Ho
  • Kim, Hui-Yong

Abstract

Disclosed are a method, an apparatus, and a recording medium for encoding/decoding an image. In a method for decoding an image, whether to perform filtering with respect to a boundary of a target block is determined, and a filtering strength with respect to the boundary of the target block, and the number of samples to be used in the filtering are determined. On the basis of such determinations, the filtering with respect to the boundary of the target block is performed. When determining the filtering strength and the number of samples, coding parameters associated with the target block and a neighboring block, such as a block size, a prediction mode, and the like, are used.

IPC Classes  ?

  • H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/124 - Quantisation
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

31.

METHOD, DEVICE, AND RECORDING MEDIUM FOR ENCODING/DECODING IMAGE USING REFERENCE PICTURE

      
Application Number KR2020008010
Publication Number 2020/256495
Status In Force
Filing Date 2020-06-19
Publication Date 2020-12-24
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Bang, Gun
  • Lim, Woong
  • Kim, Hui-Yong

Abstract

Disclosed are a method, device, and recording medium for encoding/decoding an image using a reference picture. Reference picture lists are configured in order to encode/decode target blocks. Sequence parameter sets and slice headers are used in configuring the reference picture lists. Pictures are divided into sub-pictures and/or slices, and the reference picture lists are configured for the divided sub-pictures and/or slices. The reference picture lists of the slices may be associated with each other, and the current reference picture and a future reference picture of one reference picture list may be used in another reference picture list.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/174 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a slice, e.g. a line of blocks or a group of blocks

32.

METHOD AND APPARATUS FOR SIDELINK COMMUNICATION

      
Application Number KR2020007442
Publication Number 2020/251237
Status In Force
Filing Date 2020-06-09
Publication Date 2020-12-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Moon, Sung Hyun
  • Kim, Cheul Soon
  • Lee, Jung Hoon

Abstract

A method for reporting sidelink HARQ response information, performed by a terminal, comprises the steps of: receiving, from a base station, information on allocation of a PSSCH resource for PSSCH transmission; determining a PSFCH resource for PSFCH reception corresponding to the PSSCH transmission; determining a transmission time point of HARQ response information corresponding to the PSSCH transmission; and transmitting the HARQ response information, corresponding to the PSSCH transmission, to the base station at the determined time point, wherein the transmission time point of the HARQ response information is expressed as a time offset, L, from a time point of the PSFCH resource, and information on the transmission time point of the HARQ response information may be transmitted from the base station to the terminal.

IPC Classes  ?

  • H04L 1/18 - Automatic repetition systems, e.g. van Duuren system
  • H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
  • H04W 72/04 - Wireless resource allocation
  • H04W 72/12 - Wireless traffic scheduling

33.

QUANTIZATION MATRIX ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020007733
Publication Number 2020/251332
Status In Force
Filing Date 2020-06-15
Publication Date 2020-12-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

The present disclosure provides a video decoding method comprising the steps of: determining one or more adaptive parameter sets including a quantization matrix set consisting of a plurality of quantization matrices; determining an adaptive parameter set including a quantization matrix set applied to a current picture or a current slice from among the one or more adaptive parameter sets; dequantizing transform coefficients of a current block of the current picture or the current slice on the basis of the quantization matrix set of the determined adaptive parameter set; and reconstructing the current block on the basis of the dequantized transform coefficients, wherein the adaptive parameter set includes encoding information applied to one or more pictures or slices.

IPC Classes  ?

  • H04N 19/124 - Quantisation
  • H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

34.

METHOD AND DEVICE FOR MACHINE LEARNING-BASED IMAGE COMPRESSION USING GLOBAL CONTEXT

      
Application Number KR2020007039
Publication Number 2020/242260
Status In Force
Filing Date 2020-05-29
Publication Date 2020-12-03
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Joo-Young
  • Cho, Seung-Hyun
  • Ko, Hyunsuk
  • Kwon, Hyoung-Jin
  • Kim, Youn-Hee
  • Kim, Jong-Ho
  • Jeong, Se-Yoon
  • Kim, Hui-Yong
  • Choi, Jin-Soo

Abstract

Provided are a method and device for machine learning-based image compression using global context. A disclosed image compression network employs an existing image quality enhancement network for an end-to-end joint learning scheme. The image compression network can jointly optimize image compression and quality enhancement. Image compression networks and image enhancement networks can be easily combined within an integrated architecture that minimizes total loss, and can be easily jointed and optimized.

IPC Classes  ?

35.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM HAVING STORED BITSTREAM THEREON

      
Application Number KR2020006970
Publication Number 2020/242238
Status In Force
Filing Date 2020-05-29
Publication Date 2020-12-03
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Park, Do Hyeon
  • Do, Ji Hoon
  • Yoon, Yong Uk

Abstract

Disclosed is a video decoding method, comprising the steps of: determining a transform coefficient coding region and a zero-out region of a current block according to the size of the current block; obtaining transform coefficient information of the transform coefficient coding region from a bitstream, and determining a level of a transform coefficient of the transform coefficient coding region according to the transform coefficient information; determining a level of a transform coefficient of the zero-out region as 0 without obtaining the transform coefficient information; and restoring the current block by using the transform coefficient of the current block.

IPC Classes  ?

  • H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/50 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding

36.

LINK ADAPTATION METHOD IN MOBILE COMMUNICATION SYSTEM AND DEVICE THEREFOR

      
Application Number KR2020005932
Publication Number 2020/226411
Status In Force
Filing Date 2020-05-06
Publication Date 2020-11-12
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor Chang, Sung Cheol

Abstract

A method for operating a transmission node performing link adaptation in a mobile communication network may comprise the steps of: receiving, from a resource allocation node, resource allocation information for a resource for transmission of data; determining link adaptation information and transmitting the determined link adaptation information to a reception node; and on the basis of the determined link adaptation information, transmitting the data to the reception node. Therefore, link adaptation accurately reflecting a radio channel state between a base station and terminals can be performed, thereby enabling efficient use of a radio resource.

IPC Classes  ?

  • H04W 72/08 - Wireless resource allocation based on quality criteria
  • H04W 72/04 - Wireless resource allocation
  • H04L 1/00 - Arrangements for detecting or preventing errors in the information received
  • H04L 1/18 - Automatic repetition systems, e.g. van Duuren system
  • H04W 76/10 - Connection setup
  • H04W 24/02 - Arrangements for optimising operational condition

37.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020005750
Publication Number 2020/226359
Status In Force
Filing Date 2020-04-29
Publication Date 2020-11-12
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Kim, Dae Yeon

Abstract

Provided are an image encoding/decoding method and device. The image decoding method, according to the present invention, comprises the steps of: determining an intra prediction mode of a current block; and generating a prediction block of the current block by performing prediction on the basis of the intra prediction mode, wherein, when the intra prediction mode of the current block is a matrix-based intra prediction (MIP) mode, the length of a reference sample used for intra prediction can be derived on the basis of the length of the current block.

IPC Classes  ?

  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/513 - Processing of motion vectors
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component

38.

METHOD AND DEVICE FOR SIGNALING PREDICTION MODE-RELATED SIGNAL IN INTRA PREDICTION

      
Application Number KR2020004911
Publication Number 2020/209671
Status In Force
Filing Date 2020-04-10
Publication Date 2020-10-15
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Park, Gwang Hoon
  • Kim, Tae Hyun
  • Lee, Dae Young
  • Gwun, Woo Woen
  • Lee, Won Jun

Abstract

Provided are a video encoding/decoding method and device. A video decoding method according to the present invention comprises: a step for decoding at least one among prediction mode information of neighboring blocks of a current block, and length information of the current block; a step for inducing the intra prediction mode of the current block to be a predetermined mode by using the decoded information; and a step for restoring the current block on the basis of the intra prediction mode of the current block.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

39.

METHOD AND DEVICE FOR MEASURING CHANNEL QUALITY IN COMMUNICATION SYSTEM

      
Application Number KR2020004118
Publication Number 2020/204463
Status In Force
Filing Date 2020-03-26
Publication Date 2020-10-08
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor Kim, Jae Heung

Abstract

A method and device for measuring channel quality in a communication system are disclosed. An operation method of a terminal comprises the steps of: receiving, from a serving base station, first configuration information for a basic measurement operation; receiving, from the serving base station, second configuration information for a relaxed measurement operation; measuring channel quality for the serving base station by performing the basic measurement operation by using the first configuration information; and, when the condition for the relaxed measurement operation is satisfied, measuring the channel quality for the serving base station by performing the relaxed measurement operation by using the second configuration information.

IPC Classes  ?

  • H04W 24/10 - Scheduling measurement reports
  • H04W 88/08 - Access point devices
  • H04W 16/32 - Hierarchical cell structures
  • H04W 52/28 - TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission

40.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020003206
Publication Number 2020/184918
Status In Force
Filing Date 2020-03-06
Publication Date 2020-09-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong

Abstract

Provided are an image encoding/decoding method and device. An image decoding method according to the present invention comprises the steps of: determining an intra-screen prediction mode of a current block; and generating a prediction block of the current block by performing prediction on the basis of the intra-screen prediction mode of the current block. An intra-screen prediction mode for a luminance block of the current block is derived by means of a most probable mode (MPM) list comprising a plurality of MPM candidates. The MPM list can be constructed independently from as to whether a plurality of reference sample lines are used and whether a divided prediction is performed by means of a sub-block.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking

41.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020003211
Publication Number 2020/184922
Status In Force
Filing Date 2020-03-06
Publication Date 2020-09-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image encoding/decoding method and apparatus is provided. An image decoding method according to the present invention may comprise the steps of: comparing block vector information included in a history-based candidate list with a block vector of a neighboring block, used as an intra block copy (IBC) block vector candidate for IBC prediction of a current block; and adding the block vector information included in the history-based candidate list to an IBC block vector candidate list on the basis of the comparison, wherein the step of comparison is performed for only a candidate included finally in the history-based candidate list.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/169 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

42.

METHOD FOR CONTROLLING ACCESS OF TERMINAL IN COMMUNICATION SYSTEM

      
Application Number KR2020003325
Publication Number 2020/184954
Status In Force
Filing Date 2020-03-10
Publication Date 2020-09-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor Kim, Jae Heung

Abstract

Provided is a method for controlling the access of a terminal in a communication system. An operation method of a terminal comprises the steps of: receiving, from a base station, configuration information for a two-step random access procedure; transmitting, to the base station, RA MSG-A including an RA preamble and an RA payload, on the basis of the configuration information; and receiving, from the base station, RA MSG-B, which is a response to the RA MSG-A. Therefore, communication system performance can be improved.

IPC Classes  ?

  • H04W 74/00 - Wireless channel access, e.g. scheduled or random access
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
  • H04W 72/14 - Wireless traffic scheduling using a grant channel
  • H04W 74/02 - Hybrid access techniques
  • H04W 72/12 - Wireless traffic scheduling
  • H04W 28/04 - Error control
  • H04W 84/04 - Large scale networks; Deep hierarchical networks
  • H04W 88/08 - Access point devices

43.

INTRA BLOCK COPY-BASED ENCODING/DECODING METHOD AND DEVICE, AND BITSTREAM STORAGE MEDIUM

      
Application Number KR2020003383
Publication Number 2020/184977
Status In Force
Filing Date 2020-03-11
Publication Date 2020-09-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image encoding/decoding method and device is provided. An image decoding method according to the present invention comprises the steps of: acquiring prediction mode information of a current block from a bitstream; deriving a prediction mode of the current block by using the prediction mode information of the current block; on the basis of information relating to division of the current block and the prediction mode of the current block, acquiring information indicating, on the basis of at least one of prediction modes of the current block, whether a residual signal of a transform block for the current block exists; and on the basis of the information indicating whether the residual signal of the transform block exists, reconstructing the current block.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

44.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2020003208
Publication Number 2020/184920
Status In Force
Filing Date 2020-03-06
Publication Date 2020-09-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

The present invention relates to an image encoding/decoding method and apparatus. An image decoding method according to the present invention comprises the steps of: acquiring symmetrical motion vector differential mode available information from a bitstream; acquiring first prediction direction zero motion vector differential information from the bitstream; acquiring symmetrical motion vector differential mode information of a current block from the bitstream on the basis of the symmetrical motion vector differential mode available information and the first prediction direction zero motion vector differential information; acquiring first prediction direction reference image index information, second prediction direction reference image index information, and a first prediction direction motion vector differential value on the basis of the symmetrical motion vector differential mode information; and generating a prediction block of the current block by using at least one of the first prediction direction reference image index information, the second prediction direction reference image index information, and the first prediction direction motion vector differential value, wherein in the step for acquiring the first prediction direction reference image index information, the second prediction direction reference image index information, and the first prediction direction motion vector differential value, the first prediction direction reference image index information, the second prediction direction reference image index information, and the first prediction direction motion vector differential value can be acquired by being derived from the bitstream rather than being decoded, when the symmetrical motion vector differential mode information of the current block indicates a symmetrical motion vector differential mode.

IPC Classes  ?

  • H04N 19/51 - Motion estimation or motion compensation
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

45.

IMAGE CORRECTION SYSTEM AND IMAGE CORRECTION METHOD THEREOF

      
Application Number KR2020003129
Publication Number 2020/180134
Status In Force
Filing Date 2020-03-05
Publication Date 2020-09-10
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Jo, Young Joo
  • Park, Jong Youl
  • Bae, Yu Seok

Abstract

An image correction method of the present invention comprises the steps of: performing a pre-processing process on an original image to generate a mask image including only an erased area within the original image; predicting an image to be synthesized in the erased area in the mask image by using a generative adversarial network; and synthesizing the predicted image and the erased area within the original image to generate a new image.

IPC Classes  ?

  • G06T 11/60 - Editing figures and text; Combining figures or text
  • G06T 11/20 - Drawing from basic elements, e.g. lines or circles
  • G06T 11/00 - 2D [Two Dimensional] image generation

46.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2020003205
Publication Number 2020/180162
Status In Force
Filing Date 2020-03-06
Publication Date 2020-09-10
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

The present invention relates to a method and an apparatus for transform-based image encoding/decoding. An image decoding method according to the present invention may comprise the steps of: determining a horizontal transform type and a vertical transform type of a current block; deriving a residual block of the current block by performing inverse transform of the current block on the basis of the determined horizontal transform type and vertical transform type; and reconstructing the current block on basis of the residual block, wherein the step of determining the horizontal transform type and the vertical transform type is performed on the basis of at least one of a horizontal size and a vertical size of the current block, regardless of an intra prediction mode of the current block, when the current block is in an intra sub-block partition (ISP) mode.

IPC Classes  ?

  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/136 - Incoming video signal characteristics or properties
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/124 - Quantisation
  • H04N 19/103 - Selection of coding mode or of prediction mode
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction

47.

METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SIGNAL BY USING VARIABLE BAND WIDTH IN COMMUNICATION SYSTEM

      
Application Number KR2020002056
Publication Number 2020/171478
Status In Force
Filing Date 2020-02-13
Publication Date 2020-08-27
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Jung, Hoi Yoon
  • Park, Sung Ik
  • Kim, Heung Mook
  • Hur, Nam Ho

Abstract

A method and an apparatus for transmitting/receiving a signal by using a variable band width in a communication system are disclosed. An operating method of a terminal comprises the steps of: receiving, from a base station, first configuration information about one or more guard bands of an unlicensed band; confirming the one or more guard bands configured in the unlicensed band on the basis of the first configuration information; and confirming a plurality of RB sets configured in the unlicensed band on the basis of the one or more guard bands. Therefore, performance of the communication system can be improved.

IPC Classes  ?

  • H04W 72/04 - Wireless resource allocation
  • H04W 72/12 - Wireless traffic scheduling
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
  • H04L 5/00 - Arrangements affording multiple use of the transmission path

48.

METHOD AND DEVICE FOR ENCODING/DECODING VIDEO, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2020002565
Publication Number 2020/171658
Status In Force
Filing Date 2020-02-21
Publication Date 2020-08-27
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Park, Gwang Hoon
  • Kim, Tae Hyun
  • Lee, Dae Young

Abstract

Provided are a method and device for encoding/decoding a video. A method for decoding a video according to the present invention, comprises: a step for constructing a motion information candidate list for a current block; a step for selecting a first motion information candidate used for prediction of a first sub-block in the current block from the motion information candidate list; a step for selecting a second motion information candidate used for prediction of a second sub-block in the current block from the motion information candidate list; a step for performing inter-frame prediction on the first sub-block on the basis of the first motion information candidate to generate a prediction sample of the first sub-block; and a step for performing inter-frame prediction on the second sub-block on the basis of the second motion information candidate to generate a prediction sample of the second sub-block, wherein the first motion information candidate may be any one of candidates in a first prediction direction in the motion information candidate list, and the second motion information candidate may be any one of candidates in a second prediction direction in the motion information candidate list.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/51 - Motion estimation or motion compensation

49.

METHOD FOR TRANSMITTING AND RECEIVING DISCOVERY REFERENCE SIGNAL, AND DEVICE FOR SAME

      
Application Number KR2020001807
Publication Number 2020/166902
Status In Force
Filing Date 2020-02-10
Publication Date 2020-08-20
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Jung Hoon
  • Kim, Jae Heung
  • Kim, Cheul Soon
  • Kim, Tae Joong
  • Moon, Sung Hyun

Abstract

An operation method of a terminal that receives a DRS in a mobile communication system operating in an unlicensed spectrum is characterized by including: a step for receiving an SS/PBCH block included in the DRS; a step for checking at least one monitoring occasion for a PDCCH for receiving RMSI on the basis of a PBCH included in the SS/PBCH; a step for monitoring the at least one monitoring occasion and detecting the PDCCH for receiving the RMSI; and a step for receiving a PDSCH including the RMSI on the basis of the detected PDCCH, wherein the at least one monitoring occasion is set to at least one symbol among symbols in front of the PDSCH and symbols behind the PDSCH. Accordingly, the DRS and data may be reliably transmitted and received in the mobile communication system operating in the unlicensed spectrum.

IPC Classes  ?

  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04B 17/373 - Predicting channel quality parameters
  • H04W 8/00 - Network data management
  • H04W 74/00 - Wireless channel access, e.g. scheduled or random access
  • H04L 1/00 - Arrangements for detecting or preventing errors in the information received
  • H04W 72/04 - Wireless resource allocation
  • H04W 48/12 - Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

50.

SIGNAL TRANSMISSION AND RECEPTION METHOD FOR UNLICENSED BAND COMMUNICATION, AND APPARATUS THEREFOR

      
Application Number KR2020001682
Publication Number 2020/166878
Status In Force
Filing Date 2020-02-06
Publication Date 2020-08-20
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Moon, Sung Hyun
  • Kim, Cheul Soon
  • Lee, Jung Hoon

Abstract

A method by which a terminal operating in an unlicensed band transmits a signal comprises the steps of: receiving, from a base station, configuration information about a carrier; receiving configuration information for configuring N (where N is an integer) guard band(s) for some frequency domains of the carrier; and transmitting a signal to the base station by using a first frequency domain of a bandwidth part belonging to the carrier, wherein the first frequency domain can be a domain excluding the N guard band(s) from the frequency domain of the bandwidth part.

IPC Classes  ?

  • H04W 72/12 - Wireless traffic scheduling
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]
  • H04W 72/04 - Wireless resource allocation

51.

SHAPE-VARIABLE ELECTRONIC DEVICE AND OPERATION METHOD THEREOF

      
Application Number KR2020000975
Publication Number 2020/153693
Status In Force
Filing Date 2020-01-21
Publication Date 2020-07-30
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Yun, Sung Ryul
  • Park, Suntak
  • Mun, Seongcheol
  • Park, Bong Je
  • Park, Seung Koo
  • Yoon, Jaewoong
  • Hwang, Inwook
  • Lim, Jeong Muk

Abstract

The present invention relates to a shape-variable electronic device and an operation method thereof and, more specifically, to a shape-variable electronic device including: a substrate having a cell region; a light source unit on the cell region; and a flexible layer provided vertically spaced apart from the light source unit. The flexible layer includes an actuator unit that changes the shape of the flexible layer, and the actuator unit includes: a light-heat response unit configured to receive light emitted from the light source unit and to emit thermal energy; a deformation unit configured to receive the thermal energy from the light-heat response unit and to reduce mechanical rigidity thereof; and lower and upper electrodes provided on opposite sides of the deformation unit, respectively.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G09B 21/00 - Teaching, or communicating with, the blind, deaf or mute

52.

METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING FEEDBACK INFORMATION IN COMMUNICATION SYSTEM

      
Application Number KR2020000020
Publication Number 2020/145567
Status In Force
Filing Date 2020-01-02
Publication Date 2020-07-16
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Jung, Hoi Yoon
  • Park, Sung Ik
  • Kim, Heung Mook
  • Hur, Nam Ho

Abstract

Disclosed are a method and an apparatus for transmitting or receiving feedback information in a communication system. An operation method of a terminal comprises the steps of: receiving, from a base station, DCI #1 including scheduling information of PDSCH #1 and transmission resource information of HARQ response #1 with respect to PDSCH #1; receiving, from the base station, DCI #2 including scheduling information of PDSCH #2 and transmission resource information of HARQ response #2 with respect to PDSCH #2; and when the transmission resource information of HARQ response #1 is configured as undefined, transmitting, to the base station, HARQ response #1 and HARQ response #2 by using a resource indicated by the transmission resource information of HARQ response #2. Therefore, the performance of the communication system can be improved.

IPC Classes  ?

  • H04L 1/18 - Automatic repetition systems, e.g. van Duuren system
  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04W 72/04 - Wireless resource allocation
  • H04W 74/08 - Non-scheduled access, e.g. random access, ALOHA or CSMA [Carrier Sense Multiple Access]

53.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019018597
Publication Number 2020/141813
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-09
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Lee, Yung Lyul
  • Kim, Myung Jun
  • Kim, Nam Uk
  • Kim, Yang Woo
  • Jung, Ji Yeon
  • Kim, Jae Gon

Abstract

An image encoding/decoding method and apparatus are provided. An image decoding method according to the present invention may comprise the steps of: reconstructing an intra-prediction mode of a current chrominance block; when the intra-prediction mode is a cross-component linear model (CCLM) mode, deriving at least one representative value on the basis of a neighboring sample of the current chrominance block and a neighboring sample of a corresponding luminance block corresponding to the current chrominance block; deriving a parameter of a CCLM by using the at least one representative value; and generating a prediction block of the current chrominance block by using the parameter of the CCLM.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

54.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019018630
Publication Number 2020/141816
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-09
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Lee, Yung Lyul
  • Jung, Ji Yeon
  • Kim, Nam Uk
  • Kim, Myung Jun
  • Kim, Yang Woo
  • Kim, Dae Yeon
  • Kim, Jae Gon

Abstract

An image decoding method is disclosed in the present specification. The image decoding method of the present invention comprises the steps of: performing inter prediction on a current block so as to generate an inter prediction block; performing intra prediction on the current block so as to generate an intra prediction block; determining a first weighted value and a second weighted value; and respectively applying the first weighted value and the second weighted value to the inter prediction block and the intra prediction block so as to generate a final prediction block, wherein, in the step of generating the intra prediction block, the intra prediction block can be generated using a predefined intra prediction mode.

IPC Classes  ?

  • H04N 19/107 - Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/51 - Motion estimation or motion compensation

55.

VIDEO ENCODING/DECODING METHOD, DEVICE, AND RECORDING MEDIUM STORING BITSTREAM THEREIN

      
Application Number KR2019018595
Publication Number 2020/139013
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Jeon, Byeung Woo
  • Park, Jee Yoon

Abstract

Disclosed in the present specification is a video decoding method. The video decoding method of the present invention comprises: a step for obtaining intra chrominance prediction information about a current block from a bitstream; a step for deriving the intra chrominance prediction mode of the current block on the basis of the intra chrominance prediction information; and a step for performing intra prediction on the current block on the basis of the intra chrominance prediction mode, wherein the intra chrominance prediction mode is any one among a linear model (LM) mode, a derived luma (DM) mode, a planar mode, a vertical mode, a horizontal mode, and a DC mode, and the first bit of the intra chrominance prediction information can be used to determine whether the intra chrominance prediction mode is an LM mode.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/124 - Quantisation
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

56.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019018629
Publication Number 2020/139032
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Choi, Hae Chul
  • Gwon, Dae Hyeok
  • Choi, Jae Ryun

Abstract

The present specification discloses an image decoding method. The image decoding method according to the present invention comprises the steps of: determining a prediction mode of a current block to be a merge mode with motion vector difference (MMVD); deriving a merge candidate list for the current block; deriving a predicted motion vector for the current block by using the merge candidate list; deriving a residual motion vector for the current block; and deriving a motion vector for the current block by using the predicted motion vector and the residual motion vector, wherein only a part of candidates in the merge candidate list may be used to derive the predicted motion vector.

IPC Classes  ?

  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/124 - Quantisation
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

57.

VIDEO ENCODING/DECODING METHOD, APPARATUS, AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREON

      
Application Number KR2019018584
Publication Number 2020/139008
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Lee, Yung Lyul
  • Jung, Ji Yeon
  • Kim, Nam Uk
  • Kim, Myung Jun
  • Kim, Yang Woo
  • Kim, Dae Yeon
  • Kim, Jae Gon
  • Park, Do Hyeon

Abstract

Provided is a video encoding/decoding method and apparatus. A video decoding method according to the present invention comprises the steps of: deriving a prediction mode within a screen of a current luminance block; deriving a prediction mode within the screen of a current color difference block, on the basis of the prediction mode within the screen of the current luminance block; and generating a prediction block of the current color difference block, on the basis of the prediction mode within the screen of the current color difference block, wherein the step of deriving the prediction mode within the screen of the current color difference block may comprise the step of determining whether Cross-Component Linear Mode (CCLM) can be performed for the current color difference block.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction

58.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019018575
Publication Number 2020/139005
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Park, Do Hyeon
  • Lee, Yung Lyul

Abstract

An image decoding method is disclosed in the present specification. The image decoding method of the present invention comprises the steps of: acquiring, from a bitstream, prediction information and residual signal information about a current block; and restoring the current block on the basis of the acquired prediction information and the acquired residual signal information, wherein the prediction information is acquired through entropy decoding, and a context model to be used for the entropy decoding of the prediction information is determined on the basis of a prediction mode of a neighboring block of the current block.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/51 - Motion estimation or motion compensation

59.

METHOD AND APPARATUS FOR DERIVING INTRA-PREDICTION MODE

      
Application Number KR2019018576
Publication Number 2020/139006
Status In Force
Filing Date 2019-12-27
Publication Date 2020-07-02
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong

Abstract

Provided is an image encoding/decoding method and apparatus. The image decoding method according to the present invention comprises the steps of: deriving an intra-prediction mode of a current block by using an intra-prediction mode of a neighboring block adjacent to the current block; configuring a reference sample for the current block; and performing intra-prediction on the current block by using the intra-prediction mode and the reference sample, wherein the step of deriving the intra-prediction mode of the current block comprises a step of configuring an MPM list on the basis of whether the intra-prediction mode of the current block is a planar mode.

IPC Classes  ?

  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes

60.

QUANTIZATION MATRIX ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019018432
Publication Number 2020/138933
Status In Force
Filing Date 2019-12-24
Publication Date 2020-07-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Kim, Dae Yeon

Abstract

An image encoding/decoding method and device are provided. The image decoding method according to the present invention comprises the steps of: decoding information about a quantization matrix from a bitstream; acquiring a quantization matrix of a current block on the basis of the information about the quantization matrix; and inversely quantizing the current block by using the quantization matrix of the current block, wherein the step of acquiring the quantization matrix of the current block comprises the steps of: deriving a single identifier by using at least one of size, prediction mode, and color component of the current block; and acquiring the quantization matrix of the current block on the basis of the single identifier.

IPC Classes  ?

  • H04N 19/124 - Quantisation
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/50 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/94 - Vector quantisation
  • H04N 19/136 - Incoming video signal characteristics or properties
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

61.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREIN

      
Application Number KR2019018111
Publication Number 2020/130678
Status In Force
Filing Date 2019-12-19
Publication Date 2020-06-25
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Choi, Hae Chul
  • Gwon, Dae Hyeok
  • Han, Hee Ji

Abstract

The present specification provides an image decoding method. The image decoding method according to the present invention may comprise the steps of: determining a prediction mode of a current block to an IBC mode; deriving a candidate list for deriving a block vector of the current block; and deriving the block vector of the current block by using the candidate list, wherein the candidate list is derived on the basis of a size of the current block.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/513 - Processing of motion vectors
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/124 - Quantisation

62.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019018204
Publication Number 2020/130710
Status In Force
Filing Date 2019-12-20
Publication Date 2020-06-25
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image decoding method is disclosed in the present specification. The image decoding method of the present invention comprises the steps of: determining whether a current block is a bi-directional optical flow mode; calculating tilt information about prediction samples of the current block if the current block is a bi-directional optical flow mode; and generating a prediction block of the current block by using the calculated tilt information, wherein the step of calculating tilt information about prediction samples of the current block calculates tilt information by using at least one neighbor sample adjacent to the prediction sample.

IPC Classes  ?

  • H04N 19/577 - Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/139 - Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
  • H04N 19/159 - Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/423 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements

63.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIA STORING BITSTREAM

      
Application Number KR2019017938
Publication Number 2020/130607
Status In Force
Filing Date 2019-12-18
Publication Date 2020-06-25
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Park, Do Hyeon
  • Lee, Yung Lyul

Abstract

Provided are an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise the steps of: configuring a motion information list for a current block; restoring a first index for a triangular block in the current block and a second index for a second triangular block in the current block; and predicting, on the basis of the first index, the second index and the motion information list, the first triangular block and the second triangular block.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/51 - Motion estimation or motion compensation
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]

64.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019016059
Publication Number 2020/106089
Status In Force
Filing Date 2019-11-21
Publication Date 2020-05-28
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Kim, Dae Yeon
  • Jeong, Wook Je
  • Kim, Hyun Gyu

Abstract

The specification discloses an image decoding method. The image decoding method according to the present invention comprises the steps of: determining whether to perform a context update on a first syntax element of a current block; updating a context for entropy decoding of the first syntax element on the basis of the determination; and generating a binary for the first syntax element on the basis of the updated context, wherein whether to update the context can be determined on the basis of the number of predetermined syntax elements that have already been decoded for the current block.

IPC Classes  ?

  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/124 - Quantisation
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

65.

METHOD AND APPARATUS FOR PERFORMING ENCODING/DECODING BY USING REGION-BASED INTER/INTRA PREDICTION TECHNIQUE

      
Application Number KR2019015708
Publication Number 2020/101451
Status In Force
Filing Date 2019-11-15
Publication Date 2020-05-22
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Bang, Gun
  • Kim, Hui Yong

Abstract

Disclosed are a method and an apparatus for encoding/decoding an image on the basis of a region. The image decoding method comprises the steps of: determining the projection format of a 360-degree video image; determining the spatial correlation degree between a current block and a neighboring block on the basis of the determined projection format; and determining a candidate block for predicting the current block, on the basis of the determined spatial correlation degree.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/124 - Quantisation

66.

METHOD FOR TRANSMITTING DATA OR CONTROL INFORMATION HAVING HIGH RELIABILITY CONDITIONS, AND DEVICE THEREFOR

      
Application Number KR2019014936
Publication Number 2020/096330
Status In Force
Filing Date 2019-11-06
Publication Date 2020-05-14
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kim, Cheul Soon
  • Moon, Sung Hyun
  • Baek, Seung Kwon
  • Park, Gi Yoon
  • Park, Ok Sun
  • Song, Jae Su

Abstract

Disclosed are various methods for transmitting or receiving data or control information having high reliability conditions. A method for operating a terminal which transmits uplink control information (UCI) may comprise: a step of generating UCI; a step of comparing the priority of an uplink (UL) control channel for the transmission of the UCI with the priority of a UL data channel when some symbols of the UL control channel and the UL data channel overlap; and a step of selecting the UL channel having a higher priority among the UL control channel and the UL data channel, and transmitting the UCI to a base station through the selected UL channel.

IPC Classes  ?

  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04W 72/04 - Wireless resource allocation
  • H04W 72/12 - Wireless traffic scheduling
  • H04W 72/14 - Wireless traffic scheduling using a grant channel

67.

METHOD FOR MANAGING RADIO LINK IN MULTI-CARRIER ENVIRONMENT, AND DEVICE FOR SAME

      
Application Number KR2019014035
Publication Number 2020/085808
Status In Force
Filing Date 2019-10-24
Publication Date 2020-04-30
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor Kim, Jae Heung

Abstract

A method for operating a terminal for radio link management may comprise the steps of: from a first cell, receiving a connection reconfiguration message, for configuring a carrier aggregation function, including configuration information for a second cell; performing a beam and radio link monitoring operation for the first cell and the second cell; when a beam problem or failure for the second cell is detected, performing at least one from among a procedure of reporting the beam problem or failure to the first cell and the second cell, a procedure of requesting the recovery of the beam problem or failure from the first cell and the second cell, and a beam recovery procedure for the second cell; receiving, from the first cell or the second cell, a control message in response to the report of the beam problem or failure, or in response to the beam recovery procedure; and, upon receiving the control message, determining whether the beam recovery procedure is successful or not.

IPC Classes  ?

  • H04W 36/00 - Handoff or reselecting arrangements
  • H04W 36/30 - Reselection being triggered by specific parameters by measured or perceived connection quality data
  • H04W 24/04 - Arrangements for maintaining operational condition
  • H04W 16/28 - Cell structures using beam steering
  • H04W 36/18 - Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
  • H04W 88/08 - Access point devices

68.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019013006
Publication Number 2020/071836
Status In Force
Filing Date 2019-10-04
Publication Date 2020-04-09
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Jeon, Byeung Woo
  • Park, Jee Yoon

Abstract

The present specification discloses an image decoding method. The image decoding method of the present invention may comprise the steps of: obtaining transform skip information of a current block from a bitstream; obtaining multi-transform selection information of the current block on the basis of the transform skip information from the bitstream; and performing inverse transform on the current block on the basis of the multi-transform selection information, wherein the multi-transform selection information is used to configure each of a horizontal direction transform type and a vertical direction transform type.

IPC Classes  ?

  • H04N 19/625 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/124 - Quantisation
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

69.

METHOD AND DEVICE FOR CONTROLLING AUDIO SIGNAL FOR APPLYING AUDIO ZOOM EFFECT IN VIRTUAL REALITY

      
Application Number KR2019012812
Publication Number 2020/071728
Status In Force
Filing Date 2019-10-01
Publication Date 2020-04-09
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Jang, Dae Young
  • Yoo, Jae-Hyoun
  • Lee, Yong Ju
  • Lee, Tae Jin
  • Kim, Sang Wook

Abstract

A method for controlling an audio signal may comprise the steps of: identifying, through an audio zoom effect field included in metadata, whether an audio zoom effect on at least one acoustic object existing in virtual reality is being used; and, when it is identified that the audio zoom effect is being used, controlling the audio signal corresponding to the acoustic object on the basis of a preset method.

IPC Classes  ?

70.

GROUPCAST TRANSMISSION METHOD AND APPARATUS THEREFOR

      
Application Number KR2019011804
Publication Number 2020/060105
Status In Force
Filing Date 2019-09-11
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Jung Hoon
  • Park, Ju Ho
  • Lee, Jun Hwan
  • Kim, Il Gyu
  • Kim, Jun Hyeong
  • Noh, Go San
  • Chung, Hee Sang

Abstract

A method for performing sidelink groupcast transmission by a transmission terminal may comprise the steps of: classifying reception terminals belonging to a subject group into two or more subgroups; allocating different groupcast feedback schemes to the two or more subgroups; performing groupcast transmission to the reception terminals; and receiving feedback information from terminals belonging to at least one subgroup among the two or more subgroups according to the different groupcast feedback schemes.

IPC Classes  ?

  • H04L 1/16 - Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
  • H04L 1/18 - Automatic repetition systems, e.g. van Duuren system
  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04L 12/18 - Arrangements for providing special services to substations for broadcast or conference
  • H04W 4/08 - User group management
  • H04W 4/40 - Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
  • H04L 1/00 - Arrangements for detecting or preventing errors in the information received
  • H04L 27/26 - Systems using multi-frequency codes

71.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019012008
Publication Number 2020/060163
Status In Force
Filing Date 2019-09-17
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

The present specification discloses an image decoding method. The image decoding method of the present invention comprises the steps of: obtaining, from a temporal motion buffer, a motion vector of a corresponding location block included in a reference picture of a current block; changing the format of the obtained motion vector; and deriving a temporal motion vector of the current block from the motion vector of which the format has been changed.

IPC Classes  ?

  • H04N 19/139 - Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
  • H04N 19/426 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/124 - Quantisation
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

72.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019012049
Publication Number 2020/060177
Status In Force
Filing Date 2019-09-18
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image decoding method is disclosed in the present specification. The image decoding method according to the present invention comprises the steps of: deriving motion information of a current block by using a candidate list; generating a prediction block of the current block by using the motion information of the current block; and adding the motion information of the current block to the candidate list, wherein the candidate list can be used for inter prediction of a block to be decoded after the current block.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing

73.

INTRA PREDICTION MODE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019012170
Publication Number 2020/060242
Status In Force
Filing Date 2019-09-19
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An intra prediction mode encoding/decoding method and device are provided. An intra prediction mode decoding method of the present disclosure comprises the steps of: deriving an intra prediction mode for a current block; configuring a reference sample for the current block on the basis of the derived intra prediction mode; and performing intra prediction on the current block by using the derived intra prediction mode and the configured reference sample, wherein the intra prediction mode can be derived on the basis of a most probable mode (MPM) list.

IPC Classes  ?

  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks

74.

METHOD AND DEVICE FOR ENCODING/DECODING IMAGE, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2019012198
Publication Number 2020/060261
Status In Force
Filing Date 2019-09-20
Publication Date 2020-03-26
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Choi, Hae Chul
  • Gwon, Dae Hyeok

Abstract

A method and device for encoding/decoding an image are provided. The method for decoding an image according to the present invention may comprise the steps of: identifying a region by partitioning an image; and determining a prediction mode of the region, on the basis of at least one of the size of the region, the form of partitioning, and a decoding parameter of the region. The determined prediction mode of the region may be determined to be a prediction mode of all decoding blocks included in the region.

IPC Classes  ?

  • H04N 19/103 - Selection of coding mode or of prediction mode
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/124 - Quantisation
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing

75.

METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL INCLUDING CELL INFORMATION IN COMMUNICATION SYSTEM

      
Application Number KR2019011940
Publication Number 2020/060127
Status In Force
Filing Date 2019-09-16
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Jung, Hoi Yoon
  • Park, Sung Ik
  • Kim, Heung Mook
  • Hur, Nam Ho

Abstract

Disclosed are a method and an apparatus for transmitting and receiving a signal including cell information in a communication system. An operation method of a terminal comprises the steps of: receiving a first SS/PBCH block from a base station; receiving a second SS/PBCH block from the base station after receiving the first SS/PBCH block; and confirming information included in the first SS/PBCH block and the second SS/PBCH block by performing a combining operation on the first SS/PBCH block and the second SS/PBCH block when a transmission beam of the first SS/PBCH block is the same as a transmission beam of the second SS/PBCH block. Therefore, the performance of a communication system can be improved.

IPC Classes  ?

  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04W 72/04 - Wireless resource allocation
  • H04J 11/00 - Orthogonal multiplex systems
  • H04W 48/08 - Access restriction or access information delivery, e.g. discovery data delivery
  • H04W 56/00 - Synchronisation arrangements
  • H04W 48/10 - Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information

76.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019012059
Publication Number 2020/060184
Status In Force
Filing Date 2019-09-18
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image encoding/decoding method and apparatus are provided. An image decoding method according to the present invention may comprise the steps of: deriving slice mode information relating to a slice included in a current picture; deriving slice identification information on the basis of the slice mode information; and decoding the slice on the basis of the slice identification information.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/167 - Position within a video image, e.g. region of interest [ROI]
  • H04N 19/436 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
  • H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
  • H04N 19/124 - Quantisation
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

77.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019012060
Publication Number 2020/060185
Status In Force
Filing Date 2019-09-18
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong

Abstract

An image encoding/decoding method and device are provided. The image decoding method according to the present invention comprises the steps of: deriving an intra prediction mode of a current block by using an intra prediction mode of a peripheral block adjacent to the current block; configuring a reference sample for the current block; and performing intra prediction on the current block by using the intra prediction mode and the reference sample, wherein, when the intra prediction mode of the peripheral block is not available, the intra prediction mode of the peripheral block can be replaced with a planar mode.

IPC Classes  ?

  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
  • H04N 19/597 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream

78.

METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE BY USING BOUNDARY PROCESSING, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2019012171
Publication Number 2020/060243
Status In Force
Filing Date 2019-09-19
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

A method and an apparatus for encoding/decoding an image are provided. The method for decoding an image comprises the steps: decoding block division information about a current block included in a current picture from a bitstream; determining a division method for the current block on the basis of the information; and dividing the current block by using the determined division method, wherein the division method is determined on the basis of whether the current block includes a predetermined boundary.

IPC Classes  ?

  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/124 - Quantisation
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

79.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019012277
Publication Number 2020/060316
Status In Force
Filing Date 2019-09-20
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

An image encoding method is disclosed in the present specification. An image decoding method according to the present invention can comprise the steps of: deciding the location of a co-located block in a co-located picture for a current block; deciding a representative motion vector of the current block by means of motion information in the location of the co-located block; and deriving motion information for a sub-block comprised in the current block by means of the representative motion vector.

IPC Classes  ?

  • H04N 19/573 - Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/51 - Motion estimation or motion compensation
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/124 - Quantisation

80.

METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2019012278
Publication Number 2020/060317
Status In Force
Filing Date 2019-09-20
Publication Date 2020-03-26
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong

Abstract

A method for decoding an image is disclosed. A method for decoding an image, according to the present invention, comprises the steps of: determining a prediction mode for a current block; and performing a prediction on the current block on the basis of the determined prediction mode.

IPC Classes  ?

  • H04N 19/51 - Motion estimation or motion compensation
  • H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/124 - Quantisation
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/573 - Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

81.

IMAGE ENCODING/DECODING METHOD, DEVICE, AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREIN

      
Application Number KR2019012280
Publication Number 2020/060319
Status In Force
Filing Date 2019-09-20
Publication Date 2020-03-26
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Park, Gwang Hoon
  • Kim, Tae Hyun
  • Lee, Dae Young

Abstract

The present specification discloses an image decoding method. The image decoding method according to the present invention comprises the steps of: deriving a candidate list for inter prediction of a current block; deriving motion information of the current block using the candidate list; deriving a cumulative encoding information candidate using the motion information of the current block; adding the cumulative encoding information candidate to a cumulative encoding information candidate list; and updating the candidate list by using the cumulative encoding information candidate list, wherein the updated candidate list may be used for inter prediction of a block to be decoded after the current block.

IPC Classes  ?

  • H04N 19/43 - Hardware specially adapted for motion estimation or compensation
  • H04N 19/426 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/124 - Quantisation
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding

82.

METHOD AND DEVICE FOR ENCODING/DECODING IMAGES, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2019012172
Publication Number 2020/060244
Status In Force
Filing Date 2019-09-19
Publication Date 2020-03-26
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Kim, Dae Yeon
  • Park, Dong Jin
  • Jeong, Wook Je
  • Lee, Yung Lyul
  • Kim, Jae Gon

Abstract

The present specification discloses a method for decoding images. The method for decoding images of the present invention comprises: a step for performing inverse quantization on a current block and obtaining a transform coefficient of the current block; a step for performing at least one among a primary inverse transform and a secondary inverse transform on the transform coefficient of the current block and obtaining a residual block of the current block; and a step for adding the residual block of the current block and a prediction block of the current block and obtaining a reconstructed block of the current block, wherein the secondary inverse transform can be performed only when the current block is in an intra-prediction mode.

IPC Classes  ?

  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/124 - Quantisation
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

83.

METHOD AND DEVICE FOR TRANSMITTING AND RECEIVING SIGNALS IN UNLICENSED BAND

      
Application Number KR2019011663
Publication Number 2020/055075
Status In Force
Filing Date 2019-09-09
Publication Date 2020-03-19
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Jung, Hoi Yoon
  • Park, Sung Ik
  • Kim, Heung Mook
  • Hur, Nam Ho

Abstract

Disclosed are a method and a device for transmitting and receiving signals in an unlicensed band. An operating method for a terminal comprises the steps of: receiving CORESET information from a base station; receiving, from the base station, search space information associated with the CORESET information; and carrying out a monitoring operation in a PDCCH monitoring occasion of an unlicensed band indicated by the CORESET information and the search space information. Thus, the performance of a wireless communication network can be improved.

IPC Classes  ?

  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04L 27/26 - Systems using multi-frequency codes
  • H04W 72/04 - Wireless resource allocation
  • H04B 17/382 - Monitoring; Testing of propagation channels for resource allocation, admission control or handover
  • H04L 1/00 - Arrangements for detecting or preventing errors in the information received
  • H04B 7/26 - Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
  • H04B 17/30 - Monitoring; Testing of propagation channels

84.

VIDEO ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2019011351
Publication Number 2020/050600
Status In Force
Filing Date 2019-09-03
Publication Date 2020-03-12
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (Republic of Korea)
Inventor
  • Lee, Ha Hyun
  • Kang, Jung Won
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Choi, Hae Chul
  • Back, Aram
  • Gwon, Dae Hyeok

Abstract

A video decoding method is disclosed in the present specification. The video decoding method according to the present invention may comprise the steps of: determining a prediction mode for a current block; and predicting for the current block on the basis of the determined prediction mode.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

85.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019009780
Publication Number 2020/032531
Status In Force
Filing Date 2019-08-06
Publication Date 2020-02-13
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Park, Gwang Hoon
  • Kim, Tae Hyun
  • Lee, Dae Young

Abstract

An image decoding method is disclosed in the present specification. An image decoding method of the present invention comprises: a step of generating a candidate list including motion information derived from a temporal neighboring block and a spatial neighboring block adjacent to a current block; a step of deriving motion information of the current block by using the candidate list; a step of generating a prediction block of the current block by using the derived motion information; and a step of updating the derived motion information in a motion information list, wherein the step of generating the candidate list comprises generating the candidate list including at least one piece of motion information included in the motion information list updated in a block encoded before the current block.

IPC Classes  ?

  • H04N 19/513 - Processing of motion vectors
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference
  • H04N 19/56 - Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/196 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters

86.

IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019008785
Publication Number 2020/017873
Status In Force
Filing Date 2019-07-16
Publication Date 2020-01-23
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY (Republic of Korea)
Inventor
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Park, Gwang Hoon
  • Kim, Tae Hyun
  • Lee, Dae Young

Abstract

An image decoding method is disclosed in the present specification. An image decoding method according to the present invention comprises the steps of: deriving a first candidate list for the current block by using motion information of neighboring blocks of the current block; deriving a second candidate list for the current block by using previously reconstructed motion information; deriving a third candidate list by using the first candidate list and the second candidate list; and deriving a prediction block for the current block by using the third candidate list.

IPC Classes  ?

  • H04N 19/51 - Motion estimation or motion compensation
  • H04N 19/109 - Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/124 - Quantisation
  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/107 - Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/137 - Motion inside a coding unit, e.g. average field, frame or block difference

87.

METHOD AND DEVICE FOR EFFECTIVE VIDEO ENCODING/DECODING VIA LOCAL LIGHTING COMPENSATION

      
Application Number KR2019008908
Publication Number 2020/017910
Status In Force
Filing Date 2019-07-18
Publication Date 2020-01-23
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION (Republic of Korea)
Inventor
  • Bang, Gun
  • Kim, Hui Yong
  • Sim, Dong Gyu
  • Oh, Seoung Jun
  • Park, Sea Nae
  • Park, Jun Taek
  • Lee, Jong Seok

Abstract

Disclosed is an image encoding/decoding method and device. The image decoding method comprises the steps of: deriving a first prediction value of a current block by using at least one sample included in a reference block; acquiring a lighting compensation parameter on the basis of a predetermined reference area; deriving a second prediction value of the current block by applying the lighting compensation parameter to the first prediction value; and reconstructing the current block on the basis of the second prediction value.

IPC Classes  ?

  • H04N 19/573 - Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
  • H04N 19/60 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
  • H04N 19/124 - Quantisation
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

88.

METHOD AND DEVICE FOR ENCODING/DECODING SCALABLE POINT CLOUD

      
Application Number KR2019008650
Publication Number 2020/013661
Status In Force
Filing Date 2019-07-12
Publication Date 2020-01-16
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY) (Republic of Korea)
Inventor
  • Chang, Eun Young
  • Cha, Ji Hun
  • Choi, Su Gil
  • Jang, Euee Seon
  • Cui, Li
  • Lee, So Myung

Abstract

Disclosed are a method and device for encoding/decoding a scalable point cloud. The decoding method of the present disclosure may include: a step for acquiring, from a bitstream, an encoded texture image, an encoded geometry image, encoded occupancy map information, and encoded auxiliary patch-info; a step for acquiring a decoded texture image for each partition by using the encoded texture image; a step for reconstructing a geometry image by using at least one among the encoded geometry image, the encoded occupancy map information, and the encoded auxiliary patch-info; and a step for reconstructing a point cloud by using the geometry image and the texture image for each of the partitions.

IPC Classes  ?

  • G06T 9/00 - Image coding
  • H04N 19/30 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
  • H04N 19/436 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/20 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
  • G06T 3/40 - Scaling of a whole image or part thereof
  • H04N 21/2343 - Processing of video elementary streams, e.g. splicing of video streams or manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements

89.

METHOD AND DEVICE FOR IMAGE ENCODING/DECODING, AND RECORDING MEDIUM HAVING BITSTREAM STORED THEREON

      
Application Number KR2019008299
Publication Number 2020/013532
Status In Force
Filing Date 2019-07-05
Publication Date 2020-01-16
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Dae Yeon
  • Pakr, Do Hyeon
  • Kim, Jae Gon
  • Yoon, Yong Uk
  • Lee, Yung Lyul

Abstract

The present specification discloses a method for image decoding. The method for image decoding may comprise the steps of: determining a zero out area in a current block; dividing an area excluding the zero out area from the current block into transform coefficient group units; and decoding transform coefficients in the transform coefficient group units.

IPC Classes  ?

  • H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
  • H04N 19/129 - Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/48 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

90.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019008260
Publication Number 2020/009514
Status In Force
Filing Date 2019-07-05
Publication Date 2020-01-09
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Do, Ji Hoon
  • Yoon, Yong Uk
  • Pakr, Do Hyeon
  • Lee, Yung Lyul

Abstract

An image encoding/decoding method and device are provided. An image decoding method according to the present invention can comprise the steps of: restoring an MFM indicator for indicating whether an intra prediction mode of a current block is a predetermined intra prediction mode; deriving the intra prediction mode of the current block on the basis of the MFM indicator; and generating, on the basis of the intra prediction mode, a prediction block of the current block by performing intra prediction on the current block.

IPC Classes  ?

  • H04N 19/11 - Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/186 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

91.

METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE USING QUANTIZATION PARAMETER, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019007675
Publication Number 2020/004912
Status In Force
Filing Date 2019-06-25
Publication Date 2020-01-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Lee, Yung Lyul
  • Kim, Myung Jun
  • Kim, Nam Uk
  • Jung, Ji Youn
  • Kim, Yang Woo
  • Kim, Jae Gon

Abstract

Provided are a method and apparatus for encoding/decoding an image. The method for decoding an image according to the present disclosure comprises the steps of: decoding information about the size of a quantization group from a bitstream; acquiring a residual quantization parameter of a current block on the basis of the information about the size of the quantization group; and deriving a quantization parameter of the current block on the basis of the residual quantization parameter.

IPC Classes  ?

  • H04N 19/124 - Quantisation
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/147 - Data rate or code amount at the encoder output according to rate distortion criteria
  • H04N 19/51 - Motion estimation or motion compensation
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

92.

VIDEO ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM FOR STORING BITSTREAM

      
Application Number KR2019007923
Publication Number 2020/005031
Status In Force
Filing Date 2019-06-28
Publication Date 2020-01-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Kim, Dae Yeon
  • Jeong, Wook Je
  • Park, Dong Jin
  • Jeon, Min Yong
  • Lee, Yung Lyul
  • Kim, Nam Uk
  • Kim, Myung Jun
  • Jung, Ji Youn
  • Kim, Jae Gon

Abstract

A video decoding method is disclosed in the present specification. The video decoding method includes: a step for determining whether to perform filtering on the boundary of a current block; a step for determining the filtering strength for the boundary of the current block and the number of samples to be used for the filtering; and a step for filtering on the boundary of the current block on the basis of the filtering strength and the number of samples to be used for the filtering, wherein the number of samples to be used for the filtering may be determined on the basis of the size of the current block.

IPC Classes  ?

  • H04N 19/86 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
  • H04N 19/82 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
  • H04N 19/61 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
  • H04N 19/124 - Quantisation
  • H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
  • H04N 19/593 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
  • H04N 19/117 - Filters, e.g. for pre-processing or post-processing
  • H04N 19/80 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals - Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

93.

IMAGE ENCODING/DECODING METHOD AND APPARATUS FOR THROUGHPUT ENHANCEMENT, AND RECORDING MEDIUM STORING BITSTREAM

      
Application Number KR2019007930
Publication Number 2020/005035
Status In Force
Filing Date 2019-06-28
Publication Date 2020-01-02
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • CHIPS&MEDIA,INC (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lee, Jin Ho
  • Kim, Hui Yong
  • Kim, Dae Yeon
  • Park, Dong Jin
  • Jang, Myoung Hun
  • Jeong, Wook Je

Abstract

Provided are a method and an apparatus for image encoding/decoding. An image decoding method of the present disclosure comprises the steps of: decoding, from a bitstream, information about whether to perform motion information correction; obtaining, on the basis of said information, second motion information about first motion information of a current block; and restoring, by using at least one from among said first motion information and said second motion information, said current block and at least one neighboring block of the current block.

IPC Classes  ?

  • H04N 19/103 - Selection of coding mode or of prediction mode
  • H04N 19/122 - Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/139 - Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream

94.

IMAGE ENCODING/DECODING METHOD AND DEVICE, AND RECORDING MEDIUM IN WHICH BITSTREAM IS STORED

      
Application Number KR2019007832
Publication Number 2020/004987
Status In Force
Filing Date 2019-06-27
Publication Date 2020-01-02
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Lim, Sung Chang
  • Kang, Jung Won
  • Lee, Jin Ho
  • Lee, Ha Hyun
  • Kim, Hui Yong

Abstract

An image decoding method is disclosed in the present specification. An image decoding method according to the present invention comprises the steps of: decoding block partitioning information about a current block included in a current picture; determining a partitioning method for the current block by using the block partitioning information; and partitioning the current block by using the determined partitioning type, wherein the partitioning method can be determined according to whether the current block includes a boundary for the current picture.

IPC Classes  ?

  • H04N 19/105 - Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
  • H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
  • H04N 19/119 - Adaptive subdivision aspects e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
  • H04N 19/176 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock

95.

CONTEXT ADAPTIVE BINARY ARITHMETIC CODING METHOD AND DEVICE

      
Application Number KR2019007090
Publication Number 2019/240493
Status In Force
Filing Date 2019-06-12
Publication Date 2019-12-19
Owner
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
  • INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY (Republic of Korea)
  • INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY (Republic of Korea)
Inventor
  • Lee, Jin Ho
  • Kang, Jung Won
  • Lee, Ha Hyun
  • Lim, Sung Chang
  • Kim, Hui Yong
  • Kim, Jae Gon
  • Pakr, Do Hyeon
  • Yoon, Yong Uk
  • Lee, Yung Lyul

Abstract

An image coding/decoding method and device are provided. Disclosed is an image decoding method comprising the steps of: acquiring a bitstream including a predetermined syntax element; performing, on the predetermined syntax element, at least one from among a determination of a context model, a probability update and a determination of a probability interval; and arithmetically decoding the predetermined syntax element on the basis of the performance results.

IPC Classes  ?

  • H04N 19/13 - Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
  • H04N 19/184 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being bits, e.g. of the compressed video stream

96.

METHOD AND SYSTEM FOR PREDICTING AND ANALYZING STROKE SEVERITY USING NIHSS

      
Application Number KR2019005922
Publication Number 2019/225910
Status In Force
Filing Date 2019-05-17
Publication Date 2019-11-28
Owner
  • KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE (Republic of Korea)
  • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Yu, Jae Hak
  • Park, Hong Kyu
  • Kim, Da Mee
  • Hong, Seung Hee
  • Park, Se Jin
  • Kim, Sun Jin
  • Yu, Sung Kyu

Abstract

A method for prediction and in-depth and accurate analysis of stroke severity according to an embodiment of the present invention may include a step of performing prediction and in-depth analysis of stroke severity on the basis of real-time NIHSS data received by a patient device and a medical data server, and health medical examination data received by the medical data server, and include a comprehensive medical service function for supporting a patient in getting alarm service or prompt treatment depending on stroke severity and risk.

IPC Classes  ?

  • G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
  • G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

97.

METHOD FOR TRANSMITTING AND RECEIVING SIGNALS FOR ULTRA RELIABLE LOW LATENCY COMMUNICATION

      
Application Number KR2019005276
Publication Number 2019/216599
Status In Force
Filing Date 2019-05-02
Publication Date 2019-11-14
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Moon, Sung Hyun
  • Ko, Young Jo
  • Kim, Cheul Soon
  • Baek, Seung Kwon
  • Shin, Woo Ram
  • Yoon, Chan Ho

Abstract

A method for transmitting and receiving signals for ultra reliable low latency communication is disclosed. A method of operating a terminal comprises the steps of: receiving, from a base station, first DCI including resource allocation information of a first PDSCH; performing a blind decoding operation on a PDCCH candidate when a resource region of the first PDSCH indicated by the first DCI overlaps with a resource region of the PDCCH candidate; and performing a receiving operation of a downlink channel on the basis of a result of the blind decoding operation. Therefore, the performance of a communication system can be improved.

IPC Classes  ?

  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04L 1/00 - Arrangements for detecting or preventing errors in the information received
  • H04W 72/04 - Wireless resource allocation
  • H04J 11/00 - Orthogonal multiplex systems
  • H04W 72/12 - Wireless traffic scheduling

98.

LOW-LOSS SPIRAL COIL

      
Application Number KR2019005626
Publication Number 2019/216689
Status In Force
Filing Date 2019-05-10
Publication Date 2019-11-14
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Moon, Jung Ick
  • Cho, In Kui
  • Kim, Sang- Won
  • Kim, Seong- Min
  • Lee, Ho Jin
  • Yun, Je Hoon
  • Jang, Dong Won

Abstract

A low-loss spiral coil is disclosed. The spiral coil is composed of a conducting wire wound by N turns, in which the width of the conducting wire corresponding to each of a plurality of sections in the conducting wire may be determined so as to minimize the resistance of the spiral coil formed according to the width of the conducting wire of M sections after the entire width of the conducting wire is set to the width of the conducting wire of M sections.

IPC Classes  ?

  • H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
  • H01F 5/00 - Coils
  • H01F 17/00 - Fixed inductances of the signal type

99.

METHOD AND DEVICE FOR LOW LATENCY COMMUNICATION IN COMMUNICATION SYSTEM

      
Application Number KR2019004272
Publication Number 2019/199051
Status In Force
Filing Date 2019-04-10
Publication Date 2019-10-17
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kim, Eunkyung
  • Kim, Tae Joong
  • Park, Hyun Seo
  • Lee, An Seok
  • Lee, Yu Ro
  • Lee, Hyun

Abstract

Disclosed are a method and a device for low latency communication in a communication system. An operation method of a base station comprises the steps of: transmitting first scheduling information of data units, transmitted through A sections in subframe #n, to a terminal through a first control channel in subframe #n; transmitting the data units to the terminal through the A sections; and transmitting second scheduling information of data unit(s), transmitted through B section(s) in subframe #(n+k) following subframe #n, to the terminal through a second control channel in subframe #(n+k). Therefore, the performance of the communication system can be improved.

IPC Classes  ?

  • H04W 72/12 - Wireless traffic scheduling
  • H04W 28/04 - Error control
  • H04L 1/18 - Automatic repetition systems, e.g. van Duuren system
  • H04W 72/04 - Wireless resource allocation
  • H04W 72/14 - Wireless traffic scheduling using a grant channel
  • H04W 28/02 - Traffic management, e.g. flow control or congestion control

100.

METHOD AND APPARATUS FOR UPLINK TRANSMISSION IN COMMUNICATION SYSTEM

      
Application Number KR2019003970
Publication Number 2019/194589
Status In Force
Filing Date 2019-04-04
Publication Date 2019-10-10
Owner ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Republic of Korea)
Inventor
  • Kim, Cheul Soon
  • Park, Gi Yoon
  • Baek, Seung Kwon
  • Ko, Young Jo

Abstract

Disclosed are a method and an apparatus for uplink transmission in a communication system. An operation method of a terminal, comprises the steps of: receiving, from a base station, first SFI information indicating n flexible symbol(s); receiving, from the base station, second SFI information re-indicating m symbol(s) of the n flexible symbol(s) as uplink (UL) symbol(s); and transmitting an SRS to the base station through the m symbol(s) re-indicated as a UL symbol among the n flexible symbol(s) indicated as a flexible symbol. Therefore, performance of the communication system can be improved.

IPC Classes  ?

  • H04L 5/00 - Arrangements affording multiple use of the transmission path
  • H04W 72/12 - Wireless traffic scheduling
  • H04W 72/04 - Wireless resource allocation
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