公开(公告)号：US11930184B2

公开(公告)日：2024-03-12

申请号：US17428359

申请日：2020-03-06

Applicant: InterDigital VC Holdings France

Inventor： Fabrice Urban ,  Franck Galpin ,  Philippe Bordes

IPC: H04N19/137 ,  H04N19/172 ,  H04N19/513 ,  H04N19/70

CPC classification number: H04N19/137 ,  H04N19/172 ,  H04N19/513 ,  H04N19/70

Abstract: Video processing can involve encoding and/or decoding a picture based on determining an activation of a processing mode involving a motion vector refinement process and a second process other than the motion vector refinement process; modifying the motion vector refinement process based on the activation and the second process; and encoding and/or decoding the picture based on the modified motion vector refinement process and the second process.

公开(公告)号：US20230024223A1

公开(公告)日：2023-01-26

申请号：US17781901

申请日：2020-11-30

Applicant: InterDigital VC Holdings France, SAS

Inventor： Fabrice Le Leannec ,  Karam Naser ,  Philippe Bordes ,  Tangi Poirler ,  Franck Calpin ,  Gagan Rath ,  Antoine Robert

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/176

Abstract: In an encoding apparatus or a decoding apparatus, an encoding method or decoding method combines various coding tools with intra sub partitioning mode in which a coding unit is split in multiple sub partitions. At least one embodiment particularly aims at the selection of primary transforms among a set of multiple transforms for video encoding or decoding of intra sub block partitions. At least one embodiment particularly aims at intra coding using Ma-trix-Based Intra Prediction mode combined with Intra Sub Partition mode. At least one embodiment particularly aims at intra coding using Multi-Reference-Line intra prediction mode combined with Intra Sub Partition mode.

公开(公告)号：US20220385917A1

公开(公告)日：2022-12-01

申请号：US17787533

申请日：2020-12-10

Applicant: InterDigital VC Holdings France

Inventor： Philippe Bordes ,  Tangi Poirier ,  Fabrice Le Leannec ,  Philippe De Lagrange

IPC: H04N19/139 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

Abstract: There is provided a method for estimating weighted prediction parameters intended to be used for predicting an image block.

公开(公告)号：US20220360771A1

公开(公告)日：2022-11-10

申请号：US17762922

申请日：2020-09-18

Applicant: InterDigital VC Holdings France, SAS

Inventor： Philippe Bordes ,  Didier Doyen ,  Franck Galpin ,  Michel Kerdranvat

IPC: H04N19/105 ,  H04N19/597 ,  H04N19/172 ,  H04N19/139

Abstract: Various embodiments relate to a video coding system in which some elements required for decoding are generated according to a process that not specified within the video coding system. This process is hereafter referenced to as being the “external” process. This external process may generate “external” reference pictures to be used by a decoder that is adapted to use these external pictures. Encoding method, decoding method, encoding apparatus, decoding apparatus based on this post-processing method are proposed.

公开(公告)号：US20220256200A1

公开(公告)日：2022-08-11

申请号：US17436266

申请日：2020-03-26

Applicant: InterDigital VC Holdings France

Inventor： Philippe Bordes ,  Antoine Robert ,  Fabrice Le Leannec ,  Franck Galpin

IPC: H04N19/80 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172

Abstract: Video processing such as encoding and/or decoding a picture can involve deriving an inter-prediction parameter based on first and second merge candidates used to generate a pairwise merge candidate, wherein the inter-prediction parameter comprises at least one of an index for weighted bi-prediction or an interpolation filter index; and encoding at least a portion of the picture information based on the inter-prediction parameter.

公开(公告)号：US20240187649A1

公开(公告)日：2024-06-06

申请号：US18285610

申请日：2022-03-29

Applicant: INTERDIGITAL VC HOLDINGS FRANCE, SAS

Inventor： Karam Naser ,  Fabrice Le Leannec ,  Philippe De Lagrange ,  Philippe Bordes

IPC: H04N19/625 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18

CPC classification number: H04N19/625 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18

Abstract: A method for reconstructing a block of a picture comprising: applying an inverse transform to a block of transform coefficients using a first matrix of integer coefficients representative of the inverse transform, wherein the first matrix of integer coefficients is the inverse of a second matrix of integer coefficients representative of a transform inverted to obtain the inverse transform, the second matrix of integer coefficients being derived from a third matrix of integer coefficients., the absolute values of the integer coefficients of the third matrix taking their values in a set of four different values, the derivation comprising a modification of one value of the set to ensure that a sum of two values of the set equals a third value of the set.

公开(公告)号：US20240080484A1

公开(公告)日：2024-03-07

申请号：US18269506

申请日：2021-12-03

Applicant: InterDigital VC Holdings France, SAS

Inventor： Edouard Francois ,  Philippe Bordes ,  Pierre Andrivon ,  Philippe De Lagrange ,  Gaëlle Martin-Cocher ,  Srinivas Gudumasu

IPC: H04N19/70 ,  H04N19/186

CPC classification number: H04N19/70 ,  H04N19/186

Abstract: A method comprising: obtaining (601) a syntax element associated with video data, wherein said syntax element specifies that a cross-color component transform process in which at least one second color component is transformed based on at least one first color component different from the second color component is to be applied to the video data as a post processing process following a decoding process to be applied to the video data.

公开(公告)号：US20230372814A1

公开(公告)日：2023-11-23

申请号：US18030860

申请日：2021-09-30

Applicant: InterDigital VC Holdings France, SAS

Inventor： Franck Galpin ,  Philippe Bordes ,  Fabrice Le Leannec ,  Karam Naser ,  Louis Chevallier

IPC: A63F13/358 ,  A63F13/67 ,  A63F13/355 ,  H04N19/46 ,  H04N19/503 ,  G06N3/08

CPC classification number: A63F13/358 ,  A63F13/67 ,  A63F13/355 ,  H04N19/46 ,  H04N19/503 ,  G06N3/08

Abstract: A method for reducing a latency in a gaming application comprising: obtaining (305B) a first frame, said first frame being representative of a first action performed by a user in the gaming application; obtaining (500) information representative of a second action performed by the user in the gaming application, said second action following the first action; and, predicting (500) a second frame corresponding to the second action from data comprising at least the first frame and the information representative of a second action using a neural network.

公开(公告)号：US20220116621A1

公开(公告)日：2022-04-14

申请号：US17428359

申请日：2020-03-06

Applicant: InterDigital VC Holdings France

Inventor： Fabrice Urban ,  Franck Galpin ,  Philippe Bordes

IPC: H04N19/137 ,  H04N19/513 ,  H04N19/70 ,  H04N19/172

Abstract: Video processing can involve encoding and/or decoding a picture based on determining an activation of a processing mode involving a motion vector refinement process and a second process other than the motion vector refinement process; modifying the motion vector refinement process based on the activation and the second process; and encoding and/or decoding the picture based on the modified motion vector refinement process and the second process.

公开(公告)号：US20220360781A1

公开(公告)日：2022-11-10

申请号：US17762526

申请日：2020-09-08

Applicant: InterDigital VC Holdings France, SAS

Inventor： Philippe De Lagrange ,  Philippe Bordes ,  Karam Naser ,  Edouard Francois

IPC: H04N19/126 ,  H04N19/176 ,  H04N19/196

Abstract: In a video coding system, it is proposed to determine the quantization matrix based on the block area instead of the maximal value of the block size dimension (width or height). Having specific quantization matrix for each block size actually allows adaptation to image content, and thus results in better visual quality. Indeed, choosing a quantization matrix of equal-area better match the idea of “size” than choosing a quantization matrix of the maximal dimension of the rectangular block. In at least one embodiment, the quantization matrix used for video coding or decoding is selected based on a block area identifier whose value is determined as the integer value of an average of the log 2 of block width and height. Encoding and decoding methods, encoding and decoding apparatuses, non-transitory computer readable medium and computer program are described.