Abrégé

The present application provides an encoding and decoding method, device and apparatus, wherein the encoding and decoding method comprises: determining a prediction value of each pixel point of a current image block; determining a gradient value of each pixel point of the current image block on the basis of the prediction value of each pixel point of the current image block; determining an offset vector of each pixel point of the current image block; determining a prediction compensation value of each pixel point of the current image block on the basis of the gradient value and the offset vector of each pixel point of the current image block; and determining a final prediction value of each pixel point of the current image block on the basis of the prediction value and the prediction compensation value of each pixel point of the current image block. The method can extend the applicable range of prediction compensation adjustments.

Classes IPC  ?

• H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc
• H04N 19/52 - Traitement de vecteurs de mouvement par encodage par encodage prédictif

Abrégé

Provided by the present application are a method and apparatus for coding and decoding and device thereof, the method comprising: dividing a current block into a first triangular sub-block and a second triangular sub-block if feature information of the current block meets a specific condition; constructing a motion information list for the current block, the motion information list comprising multiple pieces of candidate motion information; from the motion information list, obtaining first target motion information of the first triangular sub-block and second target motion information of the second triangular sub-block, the first target motion information being different from the second target motion information; according to the first target motion information, carrying out motion compensation on the first triangular sub-block to obtain a predicted value of the first triangular sub-block; and according to the second target motion information, carrying out motion compensation on the second triangular sub-block to obtain a predicted value of the second triangular sub-block. The technical solution of the present application may improve encoding performance.

Classes IPC  ?

• H04N 19/513 - Traitement de vecteurs de mouvement

Abrégé

CA 3,139,466 CPST Ref: 40462/00003 1 ABSTRACT 2 3 This application provides an encoding and decoding method, apparatus, and device. The 4 method comprises: if characteristic information of a current block meets a specific condition, performing the following steps to acquire a target prediction value of the current block or a sub- 6 block of the current block: determining a first original prediction value based on first 7 unidirectional motion information of the current block, and determining a second original 8 prediction value based on second unidirectional motion information of the current block; 9 determining a horizontal velocity based on the first original prediction value and the second original prediction value; determining a vertical velocity based on the first original prediction 11 value and the second original prediction value; acquiring a prediction compensation value based 12 on the horizontal velocity and the vertical velocity; and acquiring the target prediction value 13 based on the first original prediction value, the second original prediction value and the 14 prediction compensation value. By means of the technical solution of the present application, the encoding performance can be improved. 16 CPST Doc: 391239.2 Date recue / Date received 2021-11-24

Classes IPC  ?

• H04N 19/577 - Compensation de mouvement avec interpolation de trame bidirectionnelle, p.ex. utilisation d’images B
• H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc

Abrégé

Provided is a method for decoding a prediction mode. In response to determining that a merge mode is enabled for a current block and a current candidate prediction mode is allowed for the current block, the method includes: acquiring enablement states of one or more to-be-traversed prediction modes; decoding indication information of the current candidate prediction mode from a code stream in response to determining that a candidate prediction mode being allowed is present in the to-be-traversed prediction modes; and directly determining that the current candidate prediction mode is used for the current block without decoding the indication information of the current candidate prediction mode from the code stream in response to determining that none of the to-be-traversed prediction modes is allowed.

Classes IPC  ?

• H04N 19/50 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage prédictif

Abrégé

Provided is a decoding method, including: acquiring coded data of a current block; determining that a height and a width of the current block are both less than or equal to a preset threshold and the current block is a luma block; acquiring a transform pair index corresponding to the current block from the coded data, and determining the transform pair corresponding to the current block based on the transform pair index, wherein the transform pair comprises a horizontal transform kernel and a vertical transform kernel.

Classes IPC  ?

• H04N 19/13 - Codage entropique adaptatif, p.ex. codage adaptatif à longueur variable [CALV] ou codage arithmétique binaire adaptatif en fonction du contexte [CABAC]
• H04N 19/103 - Sélection du mode de codage ou du mode de prédiction
• H04N 19/159 - Type de prédiction, p.ex. prédiction intra-trame, inter-trame ou de trame bidirectionnelle

Abrégé

Provided is a decoding method, including: acquiring coded data of a current block; determining that a height and a width of the current block are both less than or equal to a preset threshold and the current block is a luma block; acquiring a transform pair index corresponding to the current block from the coded data, and determining the transform pair corresponding to the current block based on the transform pair index, wherein the transform pair comprises a horizontal transform kernel and a vertical transform kernel.

Abrégé

The application relates to an encoding and decoding method and apparatus, an encoding-side device, and a decoding-side device. The method includes: if characteristic information of a current block meets a specific condition, determining a first reference block corresponding to the current block according to a first original motion vector of the current block, and determining a second reference block corresponding to the current block according to a second original motion vector of the current block; adjusting the first and second original motion vectors according to a first pixel value of the first reference block and a second pixel value of the second reference block to obtain a first target motion vector corresponding to the first original motion vector and a second target motion vector corresponding to the second original motion vector; encoding or decoding the current block according to the first and second target motion vectors.

Abrégé

The present application provides an encoding and decoding method and device, an encoder side apparatus and a decoder side apparatus. The method comprises: if the feature information of a current block satisfies certain conditions, determining a first reference block corresponding to the current block according to a first original motion vector of the current block, and determining a second reference block corresponding to the current block according to the second original motion vector of the current block; adjusting the first original motion vector and the second original motion vector according to a first pixel value of the first reference block and a second pixel value of the second reference block so as to obtain a first target motion vector corresponding to the first original motion vector and a second target motion vector corresponding to the second original motion vector; and encoding or decoding the current block according to the first target motion vector and the second target motion vector.

Classes IPC  ?

• H04N 19/137 - Mouvement dans une unité de codage, p.ex. différence moyenne de champs, de trames ou de blocs

Abrégé

Disclosed are a video encoding and decoding method and a device. The method comprises: if the current block meets the specific condition for initiating the triangle prediction mode and it is determined to initiate the triangle prediction mode, dividing the current block into a first triangular sub-block and a second triangular sub-block; obtaining the first target movement information of the first triangular sub-block and the second target movement information of the second triangular sub-block, the first target movement information being different from the second target movement information; performing encoding or decoding on the current block according to the first target movement information and the second target movement information.

Classes IPC  ?

• H04N 19/50 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage prédictif
• H04N 19/176 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant le codage adaptatif caractérisés par l’unité de codage, c. à d. la partie structurelle ou sémantique du signal vidéo étant l’objet ou le sujet du codage adaptatif l’unité étant une zone de l'image, p.ex. un objet la zone étant un bloc, p.ex. un macrobloc

Abrégé

The present disclosure provides a video encoding and decoding method and a video encoding and decoding device. The method includes: partitioning the current block into a first triangular sub-block and a second triangular sub-block when a current block satisfies specific conditions for enabling a geometric partitioning mode with triangular partition and the geometric partitioning mode with triangular partition is determined to be enabled; obtaining first target motion information of the first triangle sub-block and second target motion information of the second triangle sub-block, wherein the first target motion information is different from the second target motion information; and performing an encoding processing or a decoding processing on the current block based on the first target motion information and the second target motion information.

Abrégé

Provided are a multi-view camera and a lens adjustment device. The multi-view camera comprises a main housing assembly, a lens and a lens adjustment device, wherein the main housing assembly comprises a main housing and an inner baffle arranged at a top opening of the main housing; the inner baffle and the main housing form a main board cavity, a main board is arranged in the main board cavity, and the area of the main board is smaller than the area of the main board cavity; the lens is mounted on the lens adjustment device, and the whole area formed by the two is located within the area of a supporting region of the inner baffle; and the lens adjustment device comprises a cylindrical component and at least two lens supports, the lens is mounted on the lens supports, and the lens supports are connected to the cylindrical component and can drive the lens to rotate around the cylindrical component. The solution can solve the problems of tedious operations and relatively low operation efficiency of a lens of existing multi-view cameras in the process of P-direction adjustment.

Classes IPC  ?

• G03B 37/00 - Photographie panoramique ou à grand écran; Photographie de surfaces étendues, p.ex. pour la géodésie; Photographie de surfaces internes, p.ex. de tuyaux