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公开(公告)号：US20210337215A1
公开(公告)日：2021-10-28
申请号：US17361747
申请日：2021-06-29
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/176 , H04N19/184 , H04N19/169 , H04N19/52 , H04N19/70 , H04N19/105 , H04N19/119 , H04N19/46 , H04N19/51 , H04N19/159
Abstract: A method for processing a video includes performing a determination, by a processor, that a first video block is partitioned to include a first prediction portion that is non-rectangular and non-square; adding a first motion vector (MV) prediction candidate associated with the first prediction portion to a motion candidate list associated with the first video block, wherein the first MV prediction candidate is derived from a sub-block MV prediction candidate; and performing further processing of the first video block using the motion candidate list.
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公开(公告)号：US20210321121A1
公开(公告)日：2021-10-14
申请号：US17357244
申请日：2021-06-24
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Jizheng XU , Yue WANG
IPC: H04N19/186 , H04N19/70 , H04N19/159 , H04N19/117
Abstract: A method for video processing is provided to include: performing a conversion between a current video block of a video and a coded representation of current video block, wherein the conversion uses a coding mode in which the current video block is constructed based on a first domain and a second domain and/or chroma residue is scaled in a luma-dependent manner, and wherein information used for the coding mode is signaled in a parameter set that is different from a sequence parameter set (SPS), a video parameter set (VPS), a picture parameter set (PPS), or an adaptation parameter set (APS) used for carrying adaptive loop filtering (ALF) parameters.
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公开(公告)号：US20210321090A1
公开(公告)日：2021-10-14
申请号：US17342951
申请日：2021-06-09
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG , Hongbin LIU , Jizheng XU
IPC: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/70 , H04N19/176
Abstract: Devices, systems, and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes generating, for a conversion between a current video block of a video and a coded representation of the current video block, a most probable mode (MPM) list based on a rule, where the rule is based on whether a neighboring video block of the current video block is coded with a matrix based intra prediction (MUP) mode, and performing the conversion between the current video block and the coded representation of the current video block using the MPM list, where the conversion applies a non-MIP mode to the current video block, and where the non-MUP mode is different from the MIP mode.
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公开(公告)号：US20210314595A1
公开(公告)日：2021-10-07
申请号：US17353629
申请日：2021-06-21
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Jizheng XU , Yue WANG
IPC: H04N19/50 , H04N19/186 , H04N19/176 , H04N19/117 , H04N19/184
Abstract: A method for video bitstream processing includes generating, using a first video block derived from a third video block of a first component and having a first size, a prediction block for a second video block of a video related to a second component, where the first component is different from the second component, and where the second video block has a second size that is different from the first size. The method also includes performing, using the prediction block, a conversion between the second video block and a bitstream representation of the video according to a two-step cross-component prediction mode (TSCPM).
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公开(公告)号：US20210297661A1
公开(公告)日：2021-09-23
申请号：US17343041
申请日：2021-06-09
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG , Hongbin LIU , Jizheng XU
IPC: H04N19/105 , H04N19/132 , H04N19/117 , H04N19/82 , H04N19/159 , H04N19/70 , H04N19/176
Abstract: Devices, systems, and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes determining, for encoding a current video block of a video into a bitstream representation of the current video block, a type of neighboring samples of the current video block to be used according to a rule, and adding, based on the determining, an encoded representation of the current video block to the bitstream representation, where the current video block is encoded using a matrix based intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation.
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Patent Agency Ranking
公开(公告)号：US20210297659A1
公开(公告)日：2021-09-23
申请号：US17338054
申请日：2021-06-03
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/105 , H04N19/176 , H04N19/184 , H04N19/46
Abstract: A method of video decoding includes checking one or more video blocks in pre-defined relative positions compared to a first video block to derive a first set of candidates, wherein each of the first set of candidates is derived from corresponding motion information of the video blocks checked, checking, upon a determination that a number of the first set of candidates has not reached a predetermined limit, one or multiple tables to derive a second set of candidates, and processing the first video block based on a bitstream representation of the first video block and the constructed candidate list.
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公开(公告)号：US20210281859A1
公开(公告)日：2021-09-09
申请号：US17316390
申请日：2021-05-10
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/176 , H04N19/184 , H04N19/146 , H04N19/567
Abstract: A method of encoding or decoding video includes: dividing a current video block into multiple sub-blocks video blocks; generating a merge candidate list for at least one sub-blocks video blocks of the multiple sub-blocks video blocks; and performing a conversion between the video block and a bitstream of the video block based one the merge candidate list; wherein the merge candidate list comprises at least one merge candidate with multi-hypothesis mode.
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公开(公告)号：US20210281856A1
公开(公告)日：2021-09-09
申请号：US17330836
申请日：2021-05-26
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Jizheng XU , Yue WANG
IPC: H04N19/159 , H04N19/132 , H04N19/96 , H04N19/176
Abstract: A method for video processing is provided to include determining, for a conversion between a current video block of a video and a coded representation of the video, whether an intra block copy (IBC) mode in which a prediction block for the current video block is calculated based on a block vector in a picture that includes current video block is enabled based on a rule on a block dimension; and performing the conversion based on the determining.
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公开(公告)号：US20210281847A1
公开(公告)日：2021-09-09
申请号：US17330665
申请日：2021-05-26
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Jizheng XU , Yue WANG
IPC: H04N19/137 , H04N19/176 , H04N19/159
Abstract: Techniques for video encoding and decoding are described. A method of video processing is disclosed. The method includes, determining, based on a video characteristic of a first video block, an enabling or disabling of a pruning process for a table updating process; updating one or multiple tables, based on the determination and motion information of the first video block, the one or multiple motion tables being History-based Motion Vector Prediction HMVP (HMVP) tables; and performing a conversion between a subsequent video block of the video and bitstream representation of the subsequent video block based on the updated tables.
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公开(公告)号：US20210274208A1
公开(公告)日：2021-09-02
申请号：US17320950
申请日：2021-05-14
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/517 , H04N19/132 , H04N19/184 , H04N19/176
Abstract: The disclosure relates to harmonization between affine mode and other inter coding tools mode. A method for video processing, comprising: acquiring, during a conversion between a current block and a bitstream representation of the current block, an indication of the current block, wherein the indication indicates whether a merged affine model of the current block should be modified; and performing, at least based on the indication, the conversion between the current block and the bitstream representation of the current block.
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