A method and apparatus for controlling tuners in a content distribution system is described. The method and apparatus receive a request from a user device for a program stream over a local network at a receiver device that includes a join request at a network address. The method and apparatus further identify a channel associated with the network address, the channel being one of the channels received by the receiver device from a content service provider. The method and apparatus also determine if the identified channel is already tuned by a tuner in the receiver device. The method and apparatus additionally tune the channel using a tuner not currently being used if it is determined that the identified channel is not already tuned and provide the program stream from the tuned channel at the network address to the user device.
H04N 21/2381 - Adapting the multiplex stream to a specific network, e.g. an IP [Internet Protocol] network
2.
METHOD FOR DETECTING AN AUDIO ADVERSARIAL ATTACK WITH RESPECT TO A VOICE INPUT PROCESSED BY AN AUTOMATIC SPEECH RECOGNITION SYSTEM, CORRESPONDING DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE CARRIER MEDIUM
A method and device is described and includes: obtaining an input audio signal associated with the voice input, obtaining a transcript resulting from the processing of the input audio signal, converting the transcript into a synthesized audio signal; extracting an acoustic feature of a same type from the input audio signal and synthesized audio signal, delivering a first sequence of features vectors associated with the input audio signal and a second sequence of features vectors associated with the synthesized audio signal converting the acoustic features to corresponding acoustic features associated with a target reference voice, delivering a first sequence and a second sequence of converted features vectors computing a dynamic time warping distance between the first sequence and second sequence of converted features vectors, and delivering data representative of a detection of an audio adversarial attack, as a result of a comparison between the dynamic time warping distance and a predetermined threshold.
METHOD FOR DETECTING AN AUDIO ADVERSARIAL ATTACK WITH RESPECT TO A VOICE COMMAND PROCESSED BYAN AUTOMATIC SPEECH RECOGNITION SYSTEM, CORRESPONDING DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE CARRIER MEDIUM
A method and device for detecting an audio adversarial attack with respect to a voice command processed by an automatic speech recognition system is described. The method is implemented by a detection device connected to the automatic speech recognition system and includes obtaining an audio signal associated with the voice command, performing a phonetic transcription of the audio signal, according to a phonetic transcription scheme, delivering a first character string; obtaining a transcript resulting from the processing, by the automatic speech recognition system, of the audio signal, performing a phonetic transcription of the transcript, according to the phonetic transcription scheme, delivering a second character string, computing a similarity score between the first character string and the second character string, and delivering a piece of data representative of a detection of an audio adversarial attack, as a function of a result of a comparison between the similarity score and a predetermined threshold.
G10L 15/22 - Procedures used during a speech recognition process, e.g. man-machine dialog
G10L 15/34 - Adaptation of a single recogniser for parallel processing, e.g. by use of multiple processors or cloud computing
4.
METHOD OF EVAULATING THE QUALITY OF A CHANNEL OPERABLE BY A WIFI ACCESS POINT FOR ESTABLISHING A WIFI CONNECTION WITH A COMMUNICATION DEVICE, CORRESPONDING DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE CARRIER MEDIUM
The disclosure relates to a method and device for evaluating the quality of a channel operable by a WiFi access point for establishing a WiFi connection with a communication device. The method is implemented by the communication device, which is already connected to the access point on a given channel, called a current channel, within a predetermined WiFi frequency band. The method includes a first phase for computing a score representative of a channel quality for at least one WiFi channel, called a scanned channel, within the predetermined WiFi frequency band, the first phase including at least one iteration of: obtaining the scanned channel bandwidth and a maximum effective isotropic radiated power associated with the scanned channel; determining a number of neighboring access points operating in the scanned channel; estimating a neighbor airtime occupancy for the scanned channel; and computing a score for the scanned channel, as a function of the obtained bandwidth, the obtained maximum effective isotropic radiated power, the determined number of neighboring access points, and the estimated neighbor airtime occupancy.
METHOD OF MONTORING USAGE OF AT LEAST ONE APPLICATION EXECUTED WITHIN AN OPERATING SYSTEM, CORRESPONDING APPARATUS, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE CARRIER MEDIUM
The disclosure relates to a method for monitoring usage of at least one application executed within an operating system of an electronic device. The method includes at least one iteration of, while a processing condition is not satisfied, determining a video event associated with a current application and storing the video event in a data structure, delivering a set of video events. The method further includes, once the processing condition is satisfied, determining a past time slot, calling an usage statistics API provided on the operating system, delivering a set of application events representative of whether an application has been put in system foreground or system background, retrieving application events that have occurred during the past time slot, retrieving video events that have occurred during the past time slot, chronologically ordering the retrieved application and video events, and delivering a consolidated set of ordered events.
H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
H04N 21/443 - OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
6.
METHOD AND APPARATUS FOR MONITORING USAGE OF AT LEAST ONE APPLICATION EXECUTED WITHIN AN OPERATING SYSTEM
The present disclosure is directed towards an apparatus and method for monitoring usage of applications executed within an operating system of an electronic device. The apparatus and method are implemented using a monitoring application different from the monitored applications and aims at providing not only information regarding applications usage time, but also information regarding how some of the monitored applications are used. The monitoring application utilizes a trained model to acquired information regarding the monitored applications.
G06F 9/451 - Execution arrangements for user interfaces
7.
METHOD FOR MONITORING QUALITY OF TRANSMISSION CONDITIONS IN A NETWORK, CORRESPONDING DEVICE, COMPUTER PROGRAM PRODUCT AND COMPUTER-READABLE CARRIER MEDIUM.
The disclosure relates to a method, device and system for monitoring quality of transmission conditions in a communications network. The method is implemented by a monitoring device connected to a transmitting device in the communications network. The method includes a first phase for determining instant composite QoS indicators which includes at least one iteration of: capturing a piece of data representing the value of each characteristic among at least three specific characteristics of a signal, called a caught value, delivering at least three caught values, normalizing the caught values, according to a normalizing scheme associated to the three specific characteristics of the received signal, delivering at least three normalized values, and calculating an instant composite QoS indicator as a function of the at least three normalized values.
A method and apparatus for diversity antenna selection and include receiving a first portion of a signal using a first antenna during a first time period and using a second antenna during a second time period, determining a first difference value for the first portion received by the first antenna, the first value being a difference between a signal level for the first portion received by the first antenna and a threshold signal level associated with the first antenna, and determining a second difference value for the first portion received by the second antenna, the second value being a difference between a signal level for the first portion received by the second antenna and a threshold signal level associated with the second antenna. The method and apparatus include receiving a second portion of the signal using the first antenna if the first difference value is greater than the second difference value.
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
9.
Method for recognizing at least one naturally emitted sound produced by a real-life sound source in an environment comprising at least one artificial sound source, corresponding apparatus, computer program product and computer-readable carrier medium
The disclosure relates to a method for recognizing at least one naturally emitted sound produced by a real-life sound source in an environment comprising at least one artificial sound source. The method is implemented by an audio recognition device, and it includes simultaneously obtaining a first audio signal from a first microphone located in the environment and a second audio signal from an audio acquisition device associated with the at least one artificial sound source; analyzing the first audio signal, delivering a first list of sound classes corresponding to sounds recognized in the first audio signal; analyzing the second audio signal, delivering a second list of sound classes corresponding to sounds recognized in the second audio signal; and delivering a third list of sound classes, comprising only sound classes included in the first list of sound classes which are not included in the second list of sound classes.
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
10.
METHOD FOR CONTROLLING MEMORY RESOURCES IN AN ELECTRONIC DEVICE, DEVICE FOR CONTROLLING MEMORY RESOURCES, ELECTRONIC DEVICE AND COMPUTER PROGRAM
The disclosure relates to a method and apparatus including setting a memory swap size limit, the limit being lower than a memory swap size defining a maximum size of a part of said memory resources used for swap, obtaining a score for at least one running program, a high score corresponding to a low priority level, obtaining monitoring information representative of a monitored activity of the program during a time period and of a learnt user's habit of use of the program, including a number of times the program gained the focus within the time period. The disclosure also includes deriving a score delta from information with a decrement value to the score delta at each focus gained by the program, adjusting the score by adding the delta, and terminating execution when memory swap size limit is reached and the adjusted score reaches a memory swap size limit threshold.
An antenna structure is described that includes a flexible substrate and at least two antenna elements being formed from conductive traces on a layer of the flexible substrate. The antenna structure also includes a plurality of conductive traces formed on the layer of the flexible substrate with a first subset being electrically coupled as a lead in to a first one of the antenna elements and a second subset of the plurality of conductive traces being electrically coupled as a lead in to a second one of the antenna elements, wherein the first subset and the second subset are separately coupled electrically to one connector after insertion of an edge of the flexible substrate into the connector. An apparatus is described that includes a case, an electronic assembly, including a printed circuit board and a support bracket, contained within the case. The apparatus further includes the antenna assembly as described herein.
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
12.
METHOD AND DEVICE FOR DETECTING ANOMALIES, CORRESPONDING COMPUTER PROGRAM AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
A method for detecting anomalies, the method being performed by a machine learning system configured for learning at least one model from a set of training data, the method including receiving sensor data from a plurality of N sensors, computing an anomaly prediction based on the sensor data and the at least one model, and if the anomaly prediction is an anomaly detection, sending an anomaly event containing said anomaly prediction. The method further includes receiving a user feedback relating to said anomaly event or to an absence of anomaly event, and adapting the at least one model based on the user feedback.
An apparatus and heat management mechanism are described. The apparatus includes an outer casing enclosing at least one heat generating electronic structure, such as a plurality of electronic components included on at least printed circuit board, the outer casing having an inner surface and an outer surface. The apparatus and the heat management mechanism further include a heat dissipation structure thermally coupled to the heat generating structure or printed circuit board, the heat dissipation structure forming an open-ended columnar channel, the open-ended columnar channel allowing air to flow within the heat dissipation structure in a direction parallel to a surface of the heat generating structure or printed circuit board.
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
14.
Method of monitoring usage of at least one application executed within an operating system, corresponding apparatus, computer program product and computer-readable carrier medium
The disclosure relates to a method for monitoring usage of at least one application executed within an operating system of an electronic device. The method includes at least one iteration of, while a processing condition is not satisfied, determining a video event associated with a current application and storing the video event in a data structure, delivering a set of video events. The method further includes, once the processing condition is satisfied, determining a past time slot, calling an usage statistics API provided on the operating system, delivering a set of application events representative of whether an application has been put in system foreground or system background, retrieving application events that have occurred during the past time slot, retrieving video events that have occurred during the past time slot, and chronologically ordering the retrieved application and video events, delivering a consolidated set of ordered events.
H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
H04N 21/443 - OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
15.
Method and system for color grading a virtual reality video content
The present disclosure relates to a method for providing assistance to a colorist in color grading of a virtual reality video content, called VR content. The method includes receiving the VR content being graded by a color grading station and receiving position information representative of the position of at least one hand of a colorist versus the color grading station. The method further includes generating, based on the position information, visual control information showing the position of the at least one hand of the colorist versus at least one grading control element of the color grading station and displaying the visual control information together with the graded VR content on a head mounted display carried by the colorist in order to help the colorist manipulating the at least one grading control element.
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G06T 7/90 - Determination of colour characteristics
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06F 3/04815 - Interaction with a metaphor-based environment or interaction object displayed as three-dimensional, e.g. changing the user viewpoint with respect to the environment or object
G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour
G06T 19/00 - Manipulating 3D models or images for computer graphics
16.
Method for identifying an event impacting the QoE of an end-user of a network equipment
In today's network management world, there are various solutions that collect data and presume to identify events impacting the QoE of the end-users. However, such solutions usually do not try to address the question of whether the end-users are actually impacted. These solutions usually look at certain types of known problems and try to detect if that problem exists in the end-user's network, and from that they conclude that the end-user might be impacted. The method according to an embodiment of the invention enables to proactively identify that an end-user is actually experiencing an event impacting the QoE in his home network. The proposed solution enables the detection of event affecting an end-user's network, regardless of the type of the network and without looking for specific issues. This knowledge may be a valuable asset of an Internet Service Provider which may fix issues quicker or mitigate end-users' dissatisfaction.
H04L 12/24 - Arrangements for maintenance or administration
17.
Method for rendering a current image on a head-mounted display, corresponding apparatus, computer program product, and computer readable carrier medium
A method for rendering a current image on a head-mounted display is provided. The current image has been acquired by a camera mounted on a moving object. First, the capturing roll angle is obtained. It is compared to the viewing roll angle that is the current roll angle of the head of a user of the head-mounted display. If the difference between the capturing roll angle and the current viewing roll angle is lower than a determined threshold, a detection flag is activated. The current image is then rotated by an angle determined according to the capturing roll angle, the current viewing roll angle and of the detection flag. The current rotated image is rendered.
G09G 5/37 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of individual graphic patterns using a bit-mapped memory - Details of the operation on graphic patterns
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G06T 3/60 - Rotation of a whole image or part thereof
A folded metal dipole antenna includes a balun having two sides, the sides having metal contact end portions for electrical connection to a printed circuit board, two radiating elements, each radiating element in coplanar relationship to a corresponding side of the balun, and an antenna support member having a spacer portion placed between the two sides of the balun. The spacer portion is used to separate one radiating element of the dipole antenna from another radiating element of the dipole antenna.
H01Q 5/48 - Combinations of two or more dipole type antennas
H01Q 9/28 - Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
H01Q 9/26 - Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
19.
Adhesive-free bonding of dielectric materials, using nanojet microstructures
A virtual reality apparatus includes a virtual reality display screen. Further, the virtual reality apparatus includes an eye tracking system that tracks a gaze direction of one or more eyes of a user to determine an object of focus in a virtual reality display. In addition, the virtual reality apparatus includes a processor. The virtual reality apparatus also includes a memory having a set of instructions that when executed by the processor causes the virtual reality apparatus to estimate one or more pupil dimensions of the one or more eyes based upon a luminance of virtual reality imagery displayed by the virtual reality display. The virtual reality apparatus is further caused to determine a focal plane based upon the estimated one or more pupil dimensions.
A method and apparatus for detecting a main lighting direction from the input image, which corresponds to a key light. The system is operative to nm on data-parallel architectures allows for incoming light direction estimation in real-time. More particularly, the method and apparatus detect a key, or principal light direction relative to the position/orientation of an acquisition device. It method involves image analysis to find a maximum intensity value, maximal values filtering, and conversion of the input image position to a direction in space.
A vehicle (100) for use in the field of visual effects is provided, which has at least one adjustable dimension. The vehicle comprises a frame (101) and a plurality of wheels (110, 120, 130, 140), the wheels being adjustably attached to the frame such that the distance between a pair of wheels can be adjusted either manually or automatically. This adjustment may be a continuous adjustment. The vehicle may also comprise tracking markers which generate data in order to facilitate the production of a digital model. The vehicle may also comprise a camera (155) having a 360 degree field of view. The data captured by the camera can be used in the digital effects process to create realistic reflections of the surrounding environment on the digital model.
B62D 21/14 - Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
B60Q 1/04 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
B62D 21/18 - Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups
B62D 23/00 - Combined superstructure and frame, i.e. monocoque constructions
B60B 35/10 - Dead axles, i.e. not transmitting torque adjustable for varying track
B62D 49/06 - Tractors adapted for multi-purpose use
B60Q 1/00 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
B60Q 1/08 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
B60B 35/14 - Torque-transmitting axles composite or split, e.g. half-axles; Couplings between axle parts or sections
B60Q 1/06 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
B60Q 1/26 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
Authentication of discs occurs by the use of interferometric authentication data. Such authentication data of a data disc is generated based on an interference pattern associated with thickness variations of a material layer on the disc. The interference pattern represents a unique fingerprint that can be used for authentication of individual discs.
An antenna structure is described. The antenna structure includes a first set of conductive elements that form a first portion of the antenna structure, the first set of conductive elements being formed on a first layer of a multi-layer printed circuit board, and a second set of conductive elements that form a second portion of the antenna structure, the second set of conductive elements being formed in parallel to the first set of conductive elements on a second layer of the multi-layer printed circuit board, wherein the first layer and the second layer are inner layers of the multilayer printed circuit board. An apparatus that uses the antenna structure is also described.
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
A method, apparatus and system for estimating reflectance parameters and a position of the light source(s) of specular reflections of a scene include RGB sequence analysis with measured geometry in order to estimate specular reflectance parameters of an observed 3D scene. Embodiments include pixel-based image registration from which profiles of 3D scene points image intensities over the sequence are estimated. A profile is attached to a 3D point and to the set of pixels that display its intensity in the registered sequence. Subsequently, distinction is made between variable profiles that reveal specular effects and constant profiles that show diffuse reflections only. Then, for each variable profile diffuse reflectance is estimated and subtracted from the intensity profile to deduce the specular profile and the specular parameters are estimated for each observed 3D point. Then, the location of at least one light source responsible for the specular effects is estimated. Optionally, the parameters can be iteratively refined to determine color information and specular reflectance parameters.
G01B 11/14 - Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01S 3/783 - Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
The disclosure relates to a method for classifying an object of a current image, a plurality of first landmarks representative of the shape of the object being associated with the current image, a first unique identifier being associated with each first landmark. According to the disclosure, the method includes, for at least a first landmark, a step of obtaining at least a first descriptor describing an area of the current image having the at least first selected landmark. Then, the first landmark is selected according to its first identifier, and when its first identifier corresponds to a second identifier of a second landmark, a second descriptor is used in a classifier for classifying the object. Finally, the method determines information representative of confidence of the shape according to the first descriptor and according to weighting information associated with the second descriptor.
G06K 9/62 - Methods or arrangements for recognition using electronic means
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G06K 9/52 - Extraction of features or characteristics of the image by deriving mathematical or geometrical properties from the whole image
G06K 9/66 - Methods or arrangements for recognition using electronic means using simultaneous comparisons or correlations of the image signals with a plurality of references, e.g. resistor matrix references adjustable by an adaptive method, e.g. learning
G06T 11/60 - Editing figures and text; Combining figures or text
27.
Device and method for synchronizing different parts of a digital service
The invention relates to a reproduction device (21), with a device (20) acting as a source of digital services. It also relates to a method of synchronizing two parts of a digital service in a system including a source device according to the invention and at least one reproduction device according to the invention.
According to the invention, the reproduction device (21) includes means for receiving the data forming at least a part of a digital service originating from a digital service source device (20), means for processing (210) at least some of the data received, means (211) for reproducing an output of at least a part of the digital service, the time for processing and reproducing the data introducing a delay in the output of the reproduced data. This device also includes communication means (213) for informing the source device of the delay introduced.
H04N 21/41 - Structure of client; Structure of client peripherals
H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
H04N 21/434 - Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams or extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
H04N 21/439 - Processing of audio elementary streams
H04N 9/806 - Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
H04N 21/235 - Processing of additional data, e.g. scrambling of additional data or processing content descriptors
H04N 21/435 - Processing of additional data, e.g. decrypting of additional data or reconstructing software from modules extracted from the transport stream
H04N 21/6336 - Control signals issued by server directed to the network components or client directed to client directed to decoder
H04N 21/84 - Generation or processing of descriptive data, e.g. content descriptors
A method for processing a picture comprising at least one face is provided. The method comprises: —obtaining (S10) a cropping window in the picture; —processing (S18) the picture by cropping the picture part delimited by the cropping window; wherein the method further comprises detecting (S12) the at least one face, determining (S14) a weight for the detected at least one face and modifying (S16) the position of the cropping window in the picture based on the weight, wherein the weight is determined at least based on the size of the corresponding detected face.
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
G06T 11/60 - Editing figures and text; Combining figures or text
G11B 27/034 - Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
G11B 27/28 - Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
29.
Method and device for bounding an object in a video
x,t image. A bounding form around the object to annotate is obtained out of four points in each frame of the video sequence, wherein the coordinates of the four points of a frame t are obtained from the coordinates of the points located in the first and second boundary of the first and second image for that frame t.
The present invention relates to a glossy part of radiation is estimated coming from a surface illuminated by area light source(s) having source surface(s) (A) bounded by edge curves, by determining integrand function(s) representative of that glossy part. The latter corresponding to an integration of the integrand function along the edge curves. In this respect, the integrand function(s) is/are approximated by means of peak-shape function(s) having a known antiderivative over the edge curves, and the glossy part is computed from analytical expressions associated with integrations of the peak-shape function(s) along the edge curves. Such invention can offer efficient and accurate computation for specular part of reflection as well as glossy transmission, and is notably relevant to real-time rendering.
Television broadcast standards are continuously improved and new standards are introduced, often with increased resolution. Many users keep their television set that cannot take advantage of the improvements. However, in a case where a higher resolution video signal is available, additional services can be provided to the users of standard resolution television sets. A method for displaying a video comprises steps of enabling a user to define (71) first view settings, applying (72) the first view settings to a first view of a first video scene, determining (73) a first camera corresponding to the first view, storing (74) the first view settings, after a scene change towards a new scene detecting (76) that the new scene corresponds to the first view, and automatically applying (78) the first view settings for displaying the new scene.
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G06F 13/00 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
H04N 5/445 - Receiver circuitry for displaying additional information
H04N 21/431 - Generation of visual interfaces; Content or additional data rendering
H04N 21/4363 - Adapting the video stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
H04N 21/4402 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
H04N 21/44 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs
H04N 21/61 - Network physical structure; Signal processing
32.
Local network and method of updating a device in a local network
A method of updating at least two interconnected devices in a local network, a local network comprising at least two interconnected devices and a method of operating a remote management client and a device in this local network are provided. A resource location information of an update archive is communicated from a remote management client in the local network to the other devices in said network. The devices participating in the update communicate participation acknowledgement messages to the remote management client. The participating devices determine whether a next one of a predefined sequence of update statuses is reached. They notify the other participating devices that this update status has been reached and pause until all other participating devices have notified that they also have reached the same update status.
The invention provides a method and apparatus for rendering an object for a plurality of 3D displays. The method comprises determining one of the plurality of 3D displays to render the object according to the relationship, in a global coordinate system, the position of the object and a region defined from a user's eyes to the 3D display; and rendering the object on the determined 3D display.
G06F 3/0346 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
G06K 9/46 - Extraction of features or characteristics of the image
H04N 13/279 - Image signal generators from 3D object models, e.g. computer-generated stereoscopic image signals the virtual viewpoint locations being selected by the viewers or determined by tracking
H04N 13/376 - Image reproducers using viewer tracking for tracking left-right translational head movements, i.e. lateral movements
H04N 13/373 - Image reproducers using viewer tracking for tracking forward-backward translational head movements, i.e. longitudinal movements
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
34.
Method and apparatus for determining a detection of a defective object in an image sequence as a misdetection
Results of automatic detection of dirt or other non-steady defects in a sequence of digitized image frames can be unreliable. Here, a determination of a detection of a defective object to be replaced by a replacement pattern in a frame of a sequence of image frames as a misdetection is presented that comprises determining a value of a first similarity measure between a boundary of the detected defective object and a boundary of the replacement pattern and determining a value of a second similarity measure between the detected defective object and the replacement pattern. The detection of the defective object is determined as a misdetection if at least one of the following holds true: the value of the first similarity measure is outside of a corresponding first similarity acceptance range and the value of the second similarity measure is inside of a corresponding second similarity acceptance range.
Methods and apparatus for access, enablement and control of devices in TV white space are provided. Methods and apparatus for channel scanning by a device are provided that shorten channel scanning time by using a 5 MHz Measurement Pilot frame at a predetermined location within an enabling device's channel, regardless of the operating bandwidth of the enabling device. Also provided are methods and apparatus for multi-band dynamic station enablement that locate information regarding an enabling device's supported regulatory classes and channel numbers within one accessible frame of information and also provide request and response messages to arrange for enablement of a requesting device on a network. Further, methods and apparatus are provided for identifying an interfering device on a network by providing increased information from within a DSE Registered Location element.
A method and device for enriching the content associated with a first element of a depth map, the depth map being associated with a scene according to a point of view. Thereafter, at least a first information representative of a variation of depth in the first element in the space of the depth map is stored into the depth map.
A method for estimating occlusion in a virtual environment comprising at least two objects and observed from a viewpoint. Thereafter, a second item of information representative of the distance separating a second fragment of a second object from the viewpoint according to an observation direction is computed; the second item of information is compared with a first item of information representative of the distance separating a first fragment of a first object from the viewpoint according to the observation direction and is stored in a first buffer memory. If the second item of information is less than the first item of information, then a third item of information representative of attributes associated with the second fragment is estimated, the second item of information is stored in a second buffer memory and of the third item of information is stored in a third buffer memory. If the second item of information is greater than the first item of information, then the first item of information is stored in the second buffer memory.
The invention proposes a method for optimizing a wireless network connection when at least one of the devices comprises a configurable antenna. For avoiding Hidden Nodes problems, it is proposed to modify the configurable antenna in such a way that the number of third network devices seen only by the network device having the configurable antenna is minimized.
A solution for managing applications in a network is proposed. A distributed application management system receives information about a first application installed on a first device in the network and determines whether a second application is required or recommended for the first device or for a second device in the network or whether a further device is required or recommended for the network based on the received information. A device management system then informs a user about a required or recommended second application or a required or recommended further device.
A method and apparatus for reducing core network traffic caused by migrant users of a public wireless network are described including receiving a DHCP discover request from a wireless client device, determining if there are enough IP addresses available to assign one of the plurality of IP addresses to the wireless client device, transmitting a DHCP acknowledgement including the assigned IP address and a lease duration to the wireless client device, determining if a lease timeout has occurred, releasing the assigned IP address if the lease timeout has occurred, receiving a first hypertext transfer protocol (HTTP) request or first hypertext transfer protocol secure (HTTPS) request from the wireless client device, transmitting a media access control (MAC) pre-authentication request from the wireless client to an authentication, authorization and accounting (AAA) server, receiving a MAC pre-authentication response from the AAA server and providing access to the Internet via the wireless client device.
User interfaces for hand-held electronic devices, such as mobile telephone devices, touch tablets, personal computers (PC), remote control devices, and/or other devices, assist users with, among other things, knowing which user input elements of a device to use when the device's physical orientation changes. According to an exemplary embodiment, a hand-held device is operative to be held in normal, upside down, left tilt, and right tilt orientations. The hand-held device changes the functions corresponding to ones of a plurality of physical buttons and ones of a plurality of virtual buttons based on the device orientation.
G09G 5/38 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of individual graphic patterns using a bit-mapped memory with means for controlling the display position
G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
Method and device for processing a geometry image generated from a mesh associated with a 3D scene and comprising a plurality of charts that each represents a part of the 3D scene, the method comprising computing a reference direction from mesh coordinates associated with a current pixel and mesh coordinates associated with a first pixel, the first pixel corresponding to a pixel of the border of the first chart located along a determined direction having as origin the current pixel; comparing the reference direction with a set of candidate directions being each computed from the mesh coordinates associated with the at least one current pixel and indirection mesh coordinates associated with one pixel of the neighbourhood of the first pixel, the indirection mesh coordinates corresponding to mesh coordinates of a pixel of the border a second chart corresponding to the pixel of the neighbourhood of the first pixel; and selecting a pixel of the border of the second chart according to the comparison result.
G06T 17/20 - Wire-frame description, e.g. polygonalisation or tessellation
G06T 15/00 - 3D [Three Dimensional] image rendering
43.
Method for monitoring a wireless link of a Wi-Fi node of a customer premises equipment device, and customer premises equipment device utilizing the method
The method for monitoring a wireless link of a Wi-Fi node of a customer premises equipment device comprises the steps of replicating receive packets as well as transmit packets passing through the transmit/receive buffers of a physical layer by including a time stamp for the replicated packets, and passing the replicated packets to a monitoring unit. All packets are replicated in particular by including an Rx/Tx control of the Wi-Fi software driver of the customer premises equipment device to obtain the exact packet exchange and timing of the Wi-Fi network. The customer premises equipment device comprises a Wi-Fi node including a Wi-Fi software driver and a physical layer with transmit/receive buffers, a Wi-Fi monitoring application for replicating the packets passing through the transmit/receive buffers, and a monitoring data path for passing the replicated packets to a monitoring unit.
Various implementations relate to processing pictures. In one particular implementation, a cropped picture is accessed. The cropped picture has been cropped, using a virtual camera window, from a picture in a sequence of pictures. Motion blur is generated for a feature in the cropped picture based on a motion of the virtual camera window and a motion of the feature. The generated motion blur is added to the feature in the cropped picture. In another particular implementation, a signal or signal structure includes a picture section for a cropped picture that has been cropped, using a virtual camera window, from a picture in a sequence of pictures. The signal or signal structure also includes a motion section for an indication of a motion of the virtual camera window.
The present disclosure is directed to a method and a device for dealiasing borders in a 3D interpolated view, the interpolated view comprising at least foreground pixels with foreground video in formation and background pixels with background video information. The method comprises the step of detecting, in an interpolated disparity map, associated to the 3D interpolated view, an aliased border between the foreground pixels with a foreground disparity value and the background pixels with a background disparity value, the aliased border delimiting an inner aliased contour formed by foreground pixels and an outer aliased contour formed by background pixel, the aliased border having the form of a stair line; determining a weighting/dealiasing coefficient for each pixel of the outer contour said coefficient corresponding to the part of the pixel area included in the virtual right triangle defined by the two sides of each stair line to the area of the pixel; calculating video information for each pixel of the outer contour in combining the background video information and the foreground video information in a proportion defined by the determined weighting/dealiasing coefficient and replacing video information for each pixel of the outer contour by the calculated video information.
i2), the index value being estimated from the coordinates associated with at least one vertex of the elementary geometry, and rendering the synthesis image by using the indexed elementary geometries.
A method and an apparatus for improving a main image by fusing the richer information contained in a secondary image are described. A 3D structure of objects contained in the secondary image is retrieved and a parallax-corrected version of the secondary image is generated using the 3D structure. For this purpose a camera pose for which a projection of the 3D structure of the objects contained in the secondary image best resembles the perspective in the main image is determined and the parallax-corrected version of the secondary image is synthesized based on the determined camera pose. The parallax-corrected version of the secondary image is then fused with the main image.
A method and an apparatus for matching corresponding frames in two multimedia streams are suggested. The first multimedia stream is an original multimedia stream for which meta-data are available. The second multimedia stream is broadcasted or multi-casted multimedia stream and has undergone processing steps such that the meta-data of the original video stream are no more available or no longer reliable. The matching of corresponding frames in the two multimedia streams is based on the comparison of audio fingerprints and the detection of shot boundaries. Matching corresponding frames with frame accuracy enables inserting targeted content like advertisements into a sequence of video frames especially in a broadcast or multicast environment where meta-data and time markers cannot be relied upon.
H04N 7/10 - Adaptations for transmission by electrical cable
H04N 21/2668 - Creating a channel for a dedicated end-user group, e.g. by inserting targeted commercials into a video stream based on end-user profiles
H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
H04N 21/439 - Processing of audio elementary streams
H04N 21/44 - Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs
H04N 21/8358 - Generation of protective data, e.g. certificates involving watermark
49.
Method and apparatus for entering symbols from a touch-sensitive screen
A method enables a user to enter symbols into an entry field from a touch-sensitive screen. According to an exemplary embodiment, the method is used in a touch-screen device and includes steps of: detecting touching an entry field displayed on said touch screen device; displaying a plurality of symbols in a single row in response to said touching receiving step; detecting touching a first one of said displayed symbols; and if said touching is ended by stopping touching said touch screen device, a second one of said displayed symbols is detected to be last touched in said single row, and said second one of said displayed symbols is different from said first one of said displayed symbols, entering said second one of said displayed symbols into said entry field.
G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
G06F 3/0482 - Interaction with lists of selectable items, e.g. menus
G06F 3/0484 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
A method and apparatus are described including scanning a channel, generating a report for the scanned channel, transmitting the channel report to an associated access point and receiving a channel assignment responsive to said channel report. Also described are a method and apparatus including scanning a channel, generating a first channel report, receiving a second channel report from an associated client, transmitting the first channel report and the second channel report to a server, receiving a channel assignment message from the server responsive to the first and second channel reports and transmitting the channel assignment message to the associated client. Further described are a method and apparatus including receiving a channel report from an associated access point, building an interference graph responsive to the channel report, determining channel assignments based on the interference graph and transmitting a channel assignment message to the associated access point.
A method and device for rendering a participating media delimited by a bounding box and rendered from a viewpoint, the media being at a determined distance from the viewpoint according to a viewing direction. In order to represent the limits of the participating media, the method comprises for at least one point of the volume formed by the bounding box, estimating a set of directions having for origin the at least one point; for each direction, estimating a first intersection point, corresponding to the intersection between the direction and the participating media, for which the associated density value is greater than a first threshold value; and estimating third intersection points, corresponding to the intersections between the viewing direction and the participating media, from an item of information representative of distances separating the first intersection point from a second intersection point corresponding to the intersection between the direction and the bounding box for each direction of the at least one part of the set of estimated directions.
A method and device for estimating the opacity at a point of a scene lit by an area light source and comprising an object defined by a mesh and occluding some of the emitted light. In order to optimize the calculations for live estimation of the opacity, the method comprises sampling said area light source in a plurality of samples, for at least one sample of the plurality of samples and for at least one first mesh element of the occluding object visible from the at least one sample, generating one shadow plane per edge of the at least one first mesh element, estimating a opacity level depending on coefficients of projection in a function base from values representative of the opacity for a set of intersection points between at least one ray having for origin a viewpoint of the scene and shadow planes crossed by said at least one ray, depending on an angle formed by the normal associated with each shadow plane crossed and by said at least one ray.
The invention relates to the improvement of the resolution of regularly sampled multi-dimensional signals, where a single low-resolution signal is available. These methods are generically referred to as example-based super-resolution or single-image super-resolution. The method for super-resolving a single image comprises three stages. First, an interpolation-based up-scaling of the input image is performed, followed by an equivalent low-pass filtering operation on the low-resolution image. The second stage comprises a search for low-frequency matches between an inspected patch in the high-resolution image and patches in a local neighborhood in the low-resolution low-frequency image, including partly overlapping patches, and accumulating the high-frequency contribution obtained from the low-resolution image. The third stage comprises adding the contributions of the low-frequency band of the high-resolution image and the extrapolated high-frequency band.
The invention relates to a reproduction device (21), with a device (20) acting as a source of digital services. It also relates to a method of synchronizing two parts of a digital service in a system including a source device according to the invention and at least one reproduction device according to the invention.
According to the invention, the reproduction device (21) includes means for receiving the data forming at least a part of a digital service originating from a digital service source device (20), means for processing (210) at least some of the data received, means (211) for reproducing an output of at least a part of the digital service, the time for processing and reproducing the data introducing a delay in the output of the reproduced data. This device also includes communication means (213) for informing the source device of the delay introduced.
H04N 21/41 - Structure of client; Structure of client peripherals
H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
H04N 21/434 - Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams or extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
H04N 21/439 - Processing of audio elementary streams
H04N 5/935 - Regeneration of digital synchronisation signals
H04N 9/806 - Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components with processing of the sound signal
A method and an apparatus for deblurring an image from a sequence of images are described. The image comprises pixels. A motion estimation stage estimates motion of the pixels of the image. A point spread function modeling stage models point spread functions for the pixels of the image using the motion estimates. A deconvolution stage determines a deblurred estimate of the image using the modeled point spread functions. A feedback loop allows iteratively improving the motion estimates for the pixels until the modeled point spread functions converge.
The invention is related to a method for processing a computer-animated scene, the computer-animated scene being represented with at least an animation graph, at least an animation graph comprising a plurality of nodes connected by paths, the paths being representative of dependencies between the nodes, at least an event being associated with each node, a first information representative of the type of each event being associated with each node. As to optimize the parallelization of the nodes, the method comprises a step of classifying the nodes in at least a first batch and at least a second batch according to the first information associated with each node, at least a first batch comprising nodes to be evaluated in parallel and at least a second batch comprising nodes to be evaluated sequentially.
A hold down for an electronic device is provided that includes a bottom frame, a circuit board mounted above the bottom frame, a thermal pad mounted on the circuit board, and a heat sink associated with the thermal pad. The hold down includes a frame that defines a perimeter having a plurality of retainers that are configured to engage with a plurality of mating locations defined on at least a bottom frame to provide a biasing force that retains the heat sink against a circuit board that is positioned between the bottom frame and the hold down.
The invention discloses a method for reception of an audio-visual program transmitted via portions over a network, the method using a real-time transport protocol and a real-time control protocol between a server and a receiver, the audio-visual program being available on the server in a plurality of versions corresponding to the program coded in different resolutions and enabling its transmission at different bitrates according to requests of the receiver. The method comprising a regular measurement of the bandwidth of the network by the receiver in order to adjust the transmission bitrate according to the state of the network.
H04N 21/236 - Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator ] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
H04L 29/06 - Communication control; Communication processing characterised by a protocol
H04L 12/24 - Arrangements for maintenance or administration
H04L 12/725 - Selecting a path with suitable quality of service [QoS]
H04L 12/927 - Allocation of resources based on type of traffic, QoS or priority
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
H04N 21/442 - Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
H04N 21/472 - End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
H04N 21/6373 - Control signals issued by the client directed to the server or network components for rate control
H04N 21/6379 - Control signals issued by the client directed to the server or network components directed to server directed to encoder
59.
Method and apparatus for quantisation index modulation for watermarking an input signal
With quantization index modulation QIM it is possible to achieve a very high data rate, and the capacity of the watermark transmission is mostly independent of the characteristics of the original audio signal, but the audio quality suffers from degradation with each watermark embedding-and-removal step. In order to avoid degradation of the audio quality, the inventive audio signal watermarking uses specific quantizer curves in time domain and in particular in frequency domain for embedding the watermark message into the audio signal, whereby the processing is almost perfectly reversible. Furthermore, it has embedded a power constraint in order to guarantee that the modifications of the audio signal due to the watermark embedding are inaudible.
G10L 19/00 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
G10L 19/018 - Audio watermarking, i.e. embedding inaudible data in the audio signal
G10L 19/008 - Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
G10L 21/038 - Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
G10L 19/24 - Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
A method of operating a miniature projector that comprises: receiving image data to project; generating light beams for a screen; scanning the light beams according to a first pattern from a first edge to an ending edge in the screen to form at least one image, the first pattern being a wave pattern of scan lines such that amplitudes oscillate along a first axis as the beams progressively scan along a second axis, the second axis being substantially perpendicular to the first axis, wherein the first pattern has a first oscillation from the first edge that is directed in a first direction along the first axis; and scanning the light beams according to a second pattern from a second edge to a second ending edge for the screen to form at least another image, the second pattern being a wave pattern of scan lines such that amplitudes oscillate along the first axis as the beams progressively scan along the second axis, wherein the second pattern has a first oscillation from the second edge that is directed in a second direction along the first axis that is opposite the first direction.
An apparatus for detecting microwave signals is suggested. The apparatus comprises an antenna for sending and receiving electromagnetic waves a circuit for detecting microwave signals and the signalization stage for generating an indication signal. In addition to that a method for detecting the presence of microwave signals is proposed.
A method and apparatus are described including scanning a channel, generating a report for the scanned channel, transmitting the channel report to an associated access point and receiving a channel assignment responsive to said channel report. Also described are a method and apparatus including scanning a channel, generating a first channel report, receiving a second channel report from an associated client, transmitting the first channel report and the second channel report to a server, receiving a channel assignment message from the server responsive to the first and second channel reports and transmitting the channel assignment message to the associated client. Further described are a method and apparatus including receiving a channel report from an associated access point, building an interference graph responsive to the channel report, determining channel assignments based on the interference graph and transmitting a channel assignment message to the associated access point.
A scene graph suitable for defining stereoscopic graphical objects, a method and an apparatus for creating such scene graphs, and a method and an apparatus for rendering graphical objects based on such scene graphs are described. The scene graph describes a spatial or a temporal arrangement of the stereoscopic graphical object and comprises information about image data for a base image for the stereoscopic graphical object, image data for a dependent image for the graphical object, and the spatial or the temporal arrangement of the base image and the dependent image. For a 3D rendering mode the graphical object is composed of the base image and the dependent image. For a 2D rendering mode the graphical object is composed of the base image only.
G11B 27/32 - Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
A more secure CAPTCHA makes use of a distorted alphanumeric character string or strings that include one or more glyphs, pictures or symbols foreign to a target audience. Adding at least one of a glyph, picture or symbol makes recognition of the distorted string trivial since humans who would know which of the character set to expect, but a very difficult decision for a computer already struggling to decide where a character begins and ends, let alone identifying the character as being valid.
G06F 21/00 - Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system
G06F 7/04 - Identity comparison, i.e. for like or unlike values
G06F 12/14 - Protection against unauthorised use of memory
G06F 21/36 - User authentication by graphic or iconic representation
A method for estimating occlusion in a virtual environment comprising at least two objects and observed from a viewpoint. Thereafter, a second item of information representative of the distance separating a second fragment of a second object from the viewpoint according to an observation direction is computed; the second item of information is compared with a first item of information representative of the distance separating a first fragment of a first object from the viewpoint according to the observation direction and is stored in a first buffer memory. If the second item of information is less than the first item of information, then a third item of information representative of attributes associated with the second fragment is estimated, the second item of information is stored in a second buffer memory and the third item of information is stored in a third buffer memory. If the second item of information is greater than the first item of information, of then the first item of information is stored in the second buffer memory.
Methods, systems and apparatuses for logging diagnostic information are disclosed. In accordance with one method, first diagnostic information is logged in a router in accordance with a first mode having a first logging rate. In addition, an operational problem within the router is detected. Further, in response to detecting the operational problem, second diagnostic information is logged in accordance with a second mode having a second logging rate that is greater than the first logging rate of the first mode.
The invention relates to an improved robustness in upscaling the resolution of regularly sampled multi-dimensional signals, where a single low-resolution signal is available. These methods are referred to as example-based super-resolution or single-image super-resolution. A method for super-resolving a single image comprises three stages. First, an interpolation-based up-scaling of the input image is performed, followed by a Local De-noising step in contour regions. The second stage comprises extrapolation through cross-scale block matching, wherein an extrapolated high-frequency band is obtained that is de-noised through regularization in the same contour regions. The third stage comprises adding the contributions of the low-frequency band of the high-resolution image and the extrapolated high-frequency band.
G06K 9/32 - Aligning or centering of the image pick-up or image-field
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
G09G 5/02 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
H04N 11/20 - Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards
H04N 9/74 - Circuits for processing colour signals for obtaining special effects
H04N 5/14 - Picture signal circuitry for video frequency region
H04N 9/64 - Circuits for processing colour signals
G06F 15/00 - Digital computers in general; Data processing equipment in general
G06F 7/00 - Methods or arrangements for processing data by operating upon the order or content of the data handled
G06F 7/38 - Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
A system and method for gesture spotting and recognition are provided. Systems and methods are also provided employing Hidden Markov Models (HMM) and geometrical feature distributions of a hand trajectory of a user to achieve adaptive gesture recognition. The system and method provide for acquiring a sequence of input images of a specific user and recognizing a gesture of the specific user from the sequence of input images based on a gesture model and geometrical features extracted from a hand trajectory of the user. State transition points of the gesture model are detected and the geometrical features of the hand trajectory of the user are extracted based on the relative positions of the detected state transition points and a starting point of the gesture. The system and method further provide for adapting the gesture model and geometrical feature distribution for the specific user based on adaptation data.
The invention relates to a method and an apparatus for determining a disparity value for an object located in or to be placed into a stereoscopic image pair having an associated disparity map. First an area to be analyzed in one of the stereoscopic images is determined Then a histogram is built from disparity estimates of the associated disparity map that fall within the determined area. Subsequently a contiguous range of bins is searched in the histogram that also contains a sufficient number of pixels. Finally, a disparity estimate for the determined area is selected from the contiguous range of histogram bins.
A system, method and user interface for providing media or content recommendations are provided. More specifically, the system, method and user interface provide media recommendations including enabling a user to select a first media object, the first media object having a first set of characteristics, enabling the user to select a second media object, the second media object having a second set of characteristics, and recommending a plurality of additional media objects, each of the plurality of additional media objects having at least one characteristic in common with the first set of characteristics and at least one characteristic in common with the second set of characteristics.
3) and a network storage facility (24) occurs in accordance with a user-assigned earliest viewing time assigned to the assets. To provide a user with the highest quality viewing experience, the network storage facility will down load to the requesting content selection device the requested media asset in advance of its earliest desired viewing time. To the extent that the content selection device lacks available storage capacity, then the content selection device will upload one or more media assets based on the earliest desired viewing time to off-load assets desired for viewing at a time later than the requested content.
H04N 5/78 - Television signal recording using magnetic recording
H04N 9/79 - Processing of colour television signals in connection with recording
H04N 5/445 - Receiver circuitry for displaying additional information
H04N 21/432 - Content retrieval operation from a local storage medium, e.g. hard-disk
H04N 21/433 - Content storage operation, e.g. storage operation in response to a pause request or caching operations
H04N 21/4335 - Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
H04N 21/472 - End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
H04N 21/482 - End-user interface for program selection
72.
Device and method for synchronizing different parts of a digital service
The invention relates to a reproduction device (21), with a device (20) acting as a source of digital services. It also relates to a method of synchronizing two parts of a digital service in a system including a source device according to the invention and at least one reproduction device according to the invention.
According to the invention, the reproduction device (21) includes means for receiving the data forming at least a part of a digital service originating from a digital service source device (20), means for processing (210) at least some of the data received, means (211) for reproducing an output of at least a part of the digital service, the time for processing and reproducing the data introducing a delay in the output of the reproduced data. This device also includes communication means (213) for informing the source device of the delay introduced.
A method for estimation of the quantity of light received at a point P of a virtual environment that comprises several first points lit by a light source, these first points forming a plurality of groups each comprising at least one first point is disclosed. In order to improve the display while minimizing the required calculation time, the method estimates the quantity of incident light received at point P by estimating a surface including point P grouping at least some of the points of the virtual environment, estimating a first group of points contributing to the lighting of point P by reflection of the incident light received from the light source based on occlusion information associated with the surface including point P and estimating the quantity of incident light received by the first group of point based on reflectance information associated with such group.
Visual discomfort from depth jumps in 3D video content is reduced or avoided by detecting the occurrence of a depth jump and by changing the disparity of a group of received image frames including the frames at the depth jump in order to adjust the perceived depth in a smooth transition across the group of image frames from a first disparity value to a second disparity value. Depth jumps may be detected, for instance, when content is switched from one 3D shot to another 3D shot.
A method and apparatus for measuring the quality of a video sequence, which includes a plurality of frames, among which one or more consecutive frames are lost, wherein during the displaying of the video sequence, the one or more lost frames are substituted by an immediate preceding frame in the video sequence during a period from the displaying of the immediate preceding frame to that of an immediate subsequent frame of the one or more lost frames, the method includes measuring the quality of the video sequence as a function of a first parameter (DF) relating to the stability of the immediate preceding frame during the period, a second parameter (DD) relating to the continuity between the immediate preceding frame and the immediate subsequent frame, and a third parameter (DP) relating to the coherent 20 motions of the video sequence.
The method, device and medium according to the invention provide (restricted) forward compatibility to higher device/medium versions. It is provided a defined behavior of an older device, if it has to handle information of a higher version number than supported by itself. A device according to the invention is able to provide restricted (e.g. playback) functionality of its records to older devices. So, a newer device is assured, that older devices will not damage the additionally stored information: This is important, because only a newer device is able to understand these additional information, and to process it correctly.
Methods and apparatus for access, enablement and control of devices in TV white space are provided. Methods and apparatus for channel scanning by a device are provided that shorten channel scanning time by using a 5 MHz Measurement Pilot frame at a predetermined location within an enabling device's channel, regardless of the operating bandwidth of the enabling device. Also provided are methods and apparatus for multi-band dynamic station enablement that locate information regarding an enabling device's supported regulatory classes and channel numbers within one accessible frame of information and also provide request and response messages to arrange for enablement of a requesting device on a network. Further, methods and apparatus are provided for identifying an interfering device on a network by providing increased information from within a DSE Registered Location element.
A method and apparatus for calculating a routing metric for a wireless network including retrieving configured system parameters, selecting a form of a first weight factor based on channel load/utilization and parameters of the first weight factor, selecting a form of a second weight factor based on frame/packet error rate and parameters of the second weight factor, retrieving estimated link bit rate, measuring a channel/link busy time, estimating a channel/link load, estimating a packet/frame error rate of the link and calculating the metric are described. A method and system for determining a route/path between two nodes of a wireless network including calculating a weighted radio and load aware metric by each node in the wireless network, storing the metric and using the metric to select the route/path for communication between two nodes of the wireless network based on a sum of the metrics calculated by each node of the wireless network are also described.
An environment map representative of lighting information of a real environment. As to enhance the impression of immersion into a virtual environment, the method comprises the steps of acquisition at real time of an image representative of a partial lighting information of said real environment from a digital optical acquisition device, said image comprising a plurality of pixels; and estimation of said environment map by extrapolation of at least a part of said pixels of said image, the extrapolation comprising the application of a first value corresponding to the mean value of the pixels of said image to at least a first part of the environment map.
Video display capabilities for use in the home continue to evolve. A method is described including receiving a video signal in a first format, determining at least one parameter associated with the signal and a display device, converting the signal to a signal in a second format based on the signal and display device parameters, and converting the second signal to a display signal based on the display device parameter. An apparatus is described including an input stream processor that decodes and separates a received signal, a controller that determines at least one characteristic of the signal and a display device, a video signal processor circuit that converts the signal to a second signal based on the characteristics and further converts the second signal to an output signal based on a characteristic of the display device, and an interface circuit that provides the output signal to the display device.
A parameter detector sends at least one test signal to a display and receives at least one detected display parameter from a remote control device in proximity of the display. A content parameter analyzer retrieves at least one content parameter from content to be sent to the display. A parameter comparator then compares the detected display parameter to the content parameter and adjusts outgoing content signals based on the content parameter but in accordance with the detected display parameter. The parameter comparator provides at least one suggested display parameter adjustment when the content parameter is beyond the detected display parameter. The suggested display parameter can be transmitted using a video and/or an audio signal.
The invention relates to a method for estimating the quantity of light scattered by a heterogeneous participating media. In order to optimise the display while minimising the required calculation time, the method comprises steps for selecting at least one level of spatial subdivision of said media from among a plurality of hierarchic levels of spatial subdivision according to at least one item of error information representative of an attenuation difference in said media according to at least one direction between two consecutive hierarchic levels, and estimating the quantity of light scattered by sampling of said media along at least one scattering direction, the sampling being a function of at least one selected spatial subdivision level.
A method renders video apparatus testing more efficient by consolidating important information from many video images into one or more composite video images. According to an exemplary embodiment, the method includes steps of receiving location information for portions of first and second video images, and combining the portions of the first and second video images into a third video image for display.
A method and apparatus are described including scanning a channel, generating a report for the scanned channel, transmitting the channel report to an associated access point and receiving a channel assignment responsive to said channel report. Also described are a method and apparatus including scanning a channel, generating a first channel report, receiving a second channel report from an associated client, transmitting the first channel report and the second channel report to a server, receiving a channel assignment message from the server responsive to the first and second channel reports and transmitting the channel assignment message to the associated client. Further described are a method and apparatus including receiving a channel report from an associated access point, building an interference graph responsive to the channel report, determining channel assignments based on the interference graph and transmitting a channel assignment message to the associated access point.
A method and apparatus are described including categorizing each channel into one of four categories, selecting a channel from a first category of channels, if there are any channels in the first category of channels, selecting a channel from a second category of channels, if there are any channels in the second category of channels and selecting a channel from a third category of channels, if there are any channels in the third category of channels.
A user accessing a media service desires to find out more information about the media service by formulating a query, by operation of an input device, where a region of interest of said media service is selected by the user. The query is submitted to other users who are defined by various tiers defined by different types of criteria. The users belonging to such tiers respond back to the query with new information, which is rendered on the media device being used by the user. Such responses are then rendered on the media device of the user. Optionally, a computer assistance mode is operated where keywords are extracted from said communications between users, and such keywords a used to obtain additional results from a resource such as a search engine.
A method and apparatus for improving performance in communication systems is provided. In one implementation, information is accessed indicating the quality of at least one communication channel. Based on the accessed information, a modulation scheme is indicated for sending data over the channel encoded with a rateless code. Various different information relating to the communication channel can be used to determine a quality metric for the channel.
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
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
It is desired to link photo data and video data taken by a digital camcorder. Therefore, there is provided a device and method for linking multimedia data, wherein linking information is formed on the basis of first and/or second multimedia data. The linking information is stored on a recording medium together with the first multimedia data. The second multimedia data may be stored together with respective linking information to the first multimedia data on a second recording medium. Thus, a camera-man while recording is able to set up logo or index pictures for a video film.
H04N 5/93 - Regeneration of the television signal or of selected parts thereof
H04N 9/80 - Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
H04N 7/10 - Adaptations for transmission by electrical cable
H04N 7/025 - Systems for transmission of digital non-picture data, e.g. of text during the active part of a television frame
H04N 5/445 - Receiver circuitry for displaying additional information
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G06F 13/00 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
A method for real time construction of a video sequence comprising a modelled 3D object is provided. The method comprises pre-calculating data representative of a first image of a three-dimensional environment and a first associated depth information. A live calculating of data representative of a second image representing the modelled object on which is mapped a current image of a live video stream, and a second depth information associated with the second image is performed. The sequence is composed by combining the first image and the second image according to the first and second depth information.
In an electronic device having an acoustic echo canceller and being capable of implementing audio applications and at least one of a conferencing application and a telephony application, there is provided a background training method for the acoustic echo canceller. The method includes the step of utilizing (650) sound that corresponds to a non-training audio application to train the acoustic echo canceller.
H04M 9/08 - Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
A system and method for scaling images are provided. An upscaling algorithm or function is employed that increases the size of an image and then filters the upscaled image to remove aliasing artifacts. The system and method provides for acquiring an image of a first size, detecting the geometry of the image, scaling the image to a second size, and filtering the scaled image with at least one filter based on the detected geometry. During the filtering process, the edges of objects in the upscaled image are detected and different filter frequency responses are provided for the detected edges. Providing different filter frequency responses for the detected edges preserves more details for line images.
A method used in a service providing device for delivering interactive multimedia content to a plurality of client devices, comprising: receiving a request for the interactive multimedia content, from at least one of the plurality of client devices; disabling the plurality of client devices from sending the request to the service providing device, according to a predetermined condition; and delivering the interactive multimedia content to the plurality of client devices.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
G06F 15/173 - Interprocessor communication using an interconnection network, e.g. matrix, shuffle, pyramid, star or snowflake
H04N 7/173 - Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests
H04N 21/262 - Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission or generating play-lists
H04N 21/4722 - End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content for requesting additional data associated with the content
H04N 21/475 - End-user interface for inputting end-user data, e.g. PIN [Personal Identification Number] or preference data
H04N 21/6543 - Transmission by server directed to the client for forcing some client operations, e.g. recording
100.
Admission control for performance aware peer-to-peer video-on-demand
A method and apparatus for performing admission control in a peer-to-peer video-on-demand system are described including determining if there is sufficient bandwidth to support leading sub-clip streaming for a new request from a video playback device, determining if there is sufficient bandwidth to admit the request without sacrificing quality of service for existing requests, accepting admission of the new request if both determining acts are positive and rejecting admission of the new request if either of the determining acts are negative. Also described is an apparatus for providing content to a video playback device in a peer-to-peer video-on-demand system including an admission control unit and a data engine component.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
H04N 7/173 - Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
H04L 12/927 - Allocation of resources based on type of traffic, QoS or priority
H04L 12/911 - Network admission control and resource allocation, e.g. bandwidth allocation or in-call renegotiation
H04N 21/218 - Source of audio or video content, e.g. local disk arrays
H04N 21/239 - Interfacing the upstream path of the transmission network, e.g. prioritizing client requests
H04N 21/472 - End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content
H04N 21/24 - Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth or upstream requests
patents
