-
公开(公告)号：US20240114141A1
公开(公告)日：2024-04-04
申请号：US18519348
申请日：2023-11-27
Inventor： Yang Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/132 , H04N19/105 , H04N19/11 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/186 , H04N19/593 , H04N19/70 , H04N19/80
CPC classification number: H04N19/132 , H04N19/105 , H04N19/11 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/186 , H04N19/593 , H04N19/70 , H04N19/80
Abstract: A method of video processing is provided to include determining, for a conversion between a video block of a video and a bitstream of the video, a parameter of a cross-component linear model (CCLM) for the video block according to a rule, and performing the conversion based on the determining, and wherein the rule specifies to use a variable representing a neighbouring luma sample in the determining of the parameter of the CCLM only in case that the variable has a certain value.
-
公开(公告)号：US11949880B2
公开(公告)日：2024-04-02
申请号：US17684694
申请日：2022-03-02
Inventor： Jizheng Xu , Zhipin Deng , Li Zhang , Hongbin Liu , Kai Zhang
IPC: H04N19/157 , H04N9/64 , H04N19/109 , H04N19/119 , H04N19/159 , H04N19/169 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/503
CPC classification number: H04N19/157 , H04N9/64 , H04N19/109 , H04N19/119 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/46 , H04N19/503
Abstract: A method of video processing is described. The method includes determining, for a conversion between a current video block of a video and a coded representation of the video, whether a certain partitioning scheme is allowed for the current video block according to a rule that depends on a coding mode type used for representing the current video block in the coded representation and a dimension of the current video block; and performing the conversion based on the determining.
-
公开(公告)号：US20240107016A1
公开(公告)日：2024-03-28
申请号：US18519287
申请日：2023-11-27
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Hongbin Liu
IPC: H04N19/119 , G06T9/40 , H04N19/107 , H04N19/109 , H04N19/11 , H04N19/127 , H04N19/132 , H04N19/167 , H04N19/169 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/189 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/96
CPC classification number: H04N19/119 , G06T9/40 , H04N19/107 , H04N19/109 , H04N19/11 , H04N19/127 , H04N19/132 , H04N19/167 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/189 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/96
Abstract: Methods, systems, and devices for coding or decoding video wherein the picture partition mode is based on block size are described. An example method for video processing includes using a dimension of a virtual pipeline data unit (VPDU) used for a conversion between a video comprising one or more video regions comprising one or more video blocks and a bitstream representation of the video to perform a determination of whether a ternary-tree (TT) or a binary tree (BT) partitioning of a video block of the one or more video blocks is enabled, and performing, based on the determination, the conversion, wherein the dimension is equal to VSize in luma samples, wherein dimensions of the video block are CtbSizeY in luma samples, wherein VSize=min(M, CtbSizeY), and wherein M is a positive integer.
-
公开(公告)号：US20240107013A1
公开(公告)日：2024-03-28
申请号：US18516447
申请日：2023-11-21
Inventor： Zhipin Deng , Li Zhang , Ye-kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/117 , H04N19/105 , H04N19/132 , H04N19/139 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/52 , H04N19/70 , H04N19/80
CPC classification number: H04N19/117 , H04N19/105 , H04N19/132 , H04N19/139 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/52 , H04N19/70 , H04N19/80
Abstract: A method includes determining, for a conversion between a video block of a video and a bitstream of the video, a size of prediction block corresponding to the video block according to a rule. The method also includes performing the conversion based on the determining. The rule specifies that a first size of the prediction block is determined responsive to whether a prediction refinement using optical flow technique is used for coding the video block. The video block has a second size and is coded using an affine merge mode or an affine advanced motion vector prediction mode.
-
公开(公告)号：US20240107006A1
公开(公告)日：2024-03-28
申请号：US18511593
申请日：2023-11-16
Inventor： Zhipin Deng , Li Zhang , Kai Zhang , Ye-kui Wang , Kui Fan
IPC: H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/52 , H04N19/547 , H04N19/573 , H04N19/70 , H04N19/82
CPC classification number: H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/167 , H04N19/172 , H04N19/174 , H04N19/184 , H04N19/196 , H04N19/30 , H04N19/52 , H04N19/547 , H04N19/573 , H04N19/70 , H04N19/82
Abstract: Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes performing a conversion between a video comprising a video picture that includes a video slice and a bitstream of the video. The bitstream conforms to a format rule specifying that, in case a slice type of the video slice is type P and temporal motion vector prediction is enabled, usage of reference picture resampling (RPR) for a reference picture in a collocated reference picture list is disabled. The reference picture is indicated by a reference index of a collocated picture of the video slice used for the temporal motion vector prediction.
-
Patent Agency Ranking
公开(公告)号：US11943444B2
公开(公告)日：2024-03-26
申请号：US17887297
申请日：2022-08-12
Inventor： Zhipin Deng , Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu
IPC: H04N19/132 , G06F17/16 , H04N19/105 , H04N19/159 , H04N19/176
CPC classification number: H04N19/132 , G06F17/16 , H04N19/105 , H04N19/159 , H04N19/176
Abstract: A method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode, where the conversion includes performing the upsampling operation in which the final prediction block is determined by using a reduced prediction block of the current video block and by using reconstructed neighboring samples of the current video block according to a rule, and where the reduced prediction block is obtained by performing the matrix vector multiplication operation on reduced boundary samples of the current video block.
-
公开(公告)号：US20240098296A1
公开(公告)日：2024-03-21
申请号：US18511098
申请日：2023-11-16
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/513 , H04N19/172 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/51 , H04N19/517
CPC classification number: H04N19/513 , H04N19/172 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/51 , H04N19/517
Abstract: A method for video processing is provided to comprise: determining a motion vector precision of one or more motion vectors related to a current video block of a video; selecting, based on the motion vector precision, a motion vector range; and performing, based on the motion vector range, a conversion between the current video block and a bitstream representation of the video.
-
298.发明公开公开(公告)号：US20240089491A1
公开(公告)日：2024-03-14
申请号：US18511610
申请日：2023-11-16
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/52 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/30 , H04N19/513 , H04N19/56
CPC classification number: H04N19/52 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/30 , H04N19/513 , H04N19/56
Abstract: Devices, systems and methods for the simplification of sub-block motion candidate lists for video coding are described. In a representative aspect, a method for video processing includes determining, during a conversion between a current block and a bitstream representation of the current block, a temporal motion vector prediction candidate for a sub-block of the current block. The temporal motion vector prediction candidate is completely determined based on K neighboring blocks of the current block, K being a positive integer. The method also includes performing the conversion based on the temporal motion vector prediction candidate for the sub-block.
-
公开(公告)号：US20240089483A1
公开(公告)日：2024-03-14
申请号：US18508853
申请日：2023-11-14
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Zhipin Deng , Jizheng Xu , Ye-kui Wang
IPC: H04N19/46 , H04N19/174 , H04N19/176 , H04N19/70
CPC classification number: H04N19/46 , H04N19/174 , H04N19/176 , H04N19/70
Abstract: Devices, systems and methods related to digital video coding, and specifically, to signaling of slice types in video picture headers are described. One example method of video processing includes performing a conversion between a video including one or more video pictures including one or more slices and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that for a video picture of the one or more video pictures having all slices coded as I slices, P slice and B slice related syntax elements are omitted from a picture header for the video picture.
-
公开(公告)号：US11930218B2
公开(公告)日：2024-03-12
申请号：US17898051
申请日：2022-08-29
Inventor： Zhipin Deng , Ye-kui Wang , Li Zhang , Kai Zhang , Kui Fan
IPC: H04N19/70 , H04N19/105 , H04N19/11 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/186 , H04N19/61 , H04N19/107 , H04N19/172 , H04N19/174 , H04N19/169 , H04N19/30 , H04N19/117 , H04N19/196
CPC classification number: H04N19/70 , H04N19/105 , H04N19/107 , H04N19/11 , H04N19/117 , H04N19/122 , H04N19/132 , H04N19/139 , H04N19/172 , H04N19/174 , H04N19/186 , H04N19/188 , H04N19/196 , H04N19/30 , H04N19/61
Abstract: Methods, systems, apparatus for video processing are described. A method for processing video includes performing a conversion between a video and a bitstream of the video according to a format rule, and wherein the format rule specifies whether a syntax element in a sequence parameter set (SPS) based on a value of a general constraint flag.
-
-
-
-
-
-
-
-
-
Search Results
1201
records
(took 0.154 seconds)
