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公开(公告)号：US20240121383A1
公开(公告)日：2024-04-11
申请号：US18535903
申请日：2023-12-11
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/105 , H04N19/107 , H04N19/159 , H04N19/176 , H04N19/50 , H04N19/70
CPC classification number: H04N19/105 , H04N19/107 , H04N19/159 , H04N19/176 , H04N19/50 , H04N19/70
Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target block of a video and a bitstream of the target block, a target weight table from a plurality of weight tables for multi-hypothesis prediction, the target weight table being used for a hypothesis of the target block, the target block being a multiple hypothesis prediction block; and performing the conversion based on the target weight table.
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公开(公告)号：US20230080321A1
公开(公告)日：2023-03-16
申请号：US17701224
申请日：2022-03-22
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/132 , H04N19/105 , H04N19/117 , H04N19/82 , H04N19/176
Abstract: An example method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, that one or more samples of the video outside the current block are unavailable for a coding process of the conversion. The coding process comprises an adaptive loop filter (ALF) coding process. The method also includes performing, based on the determining, the conversion by using padded samples for the one or more samples of the video. The padded samples are generated by checking for availability of samples in an order.
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公开(公告)号：US20230007261A1
公开(公告)日：2023-01-05
申请号：US17470095
申请日：2021-09-09
Inventor： Weijia ZHU , Jizheng XU , Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/132 , H04N19/105 , H04N19/159 , H04N19/70 , H04N19/46 , H04N19/186 , H04N19/176
Abstract: A method of visual media processing video, includes determining that palette mode is to be used for processing a first portion of a video block and intra block copy (IBC) mode is to be used for processing a second portion of the video block, and performing further processing of the first portion of the video block using the palette mode and the second portion of the video using the IBC mode, wherein indications of the first portion of the video block processed using the palette mode and indications of the second portion of the video block processed using the IBC mode are included in a palette index identifying the first portion of the video block and the second portion of the video block.
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公开(公告)号：US20220368898A1
公开(公告)日：2022-11-17
申请号：US17852934
申请日：2022-06-29
Applicant: Bytedance Inc.
Inventor： Weijia ZHU , Li ZHANG , Jizheng XU , Kai ZHANG , Ye-kui WANG
IPC: H04N19/117 , H04N19/82 , H04N19/186 , H04N19/176
Abstract: A method of video processing, including performing a conversion between a video unit of a video and a bitstream representation of the video, wherein the conversion includes applying a deblocking filter to at least some samples on boundaries of the video unit, wherein deblocking quantization parameter (QP) values used in the deblocking filter are determined according to a rule, and wherein the rule specifies that whether the deblocking QP values are equal to dequantization QP values for the video unit is based on whether an adaptive color transform (ACT) mode is applied to the video unit.
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公开(公告)号：US20220321882A1
公开(公告)日：2022-10-06
申请号：US17835647
申请日：2022-06-08
Applicant: Bytedance Inc.
Inventor： Weijia ZHU , Li ZHANG , Jizheng XU , Kai ZHANG , Ye-kui WANG
IPC: H04N19/117 , H04N19/80 , H04N19/186 , H04N19/176 , H04N19/174 , H04N19/70
Abstract: An example method of video processing includes applying, in a conversion between a video comprising multiple components and a bitstream representation of the video, a deblocking filter to video blocks of the multiple components. A deblocking filter strength for the deblocking filter of each of the multiple components is determined according to a rule that specifies to use a different manner for determining the deblocking filter strength for the video blocks of each of the multiple components.
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Patent Agency Ranking
公开(公告)号：US20220286674A1
公开(公告)日：2022-09-08
申请号：US17824386
申请日：2022-05-25
IPC: H04N19/117 , H04N19/119 , H04N19/176 , H04N19/186
Abstract: A method of video processing, including performing a conversion between a video block of a video component of a video and a bitstream of the video, where the video block includes sub-blocks, where a filtering tool is used during the conversion according to a rule, and where the rule specifies that the filtering tool is applied by using a single offset for all samples of each sub-block of the video block.
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公开(公告)号：US20220272353A1
公开(公告)日：2022-08-25
申请号：US17713063
申请日：2022-04-04
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Jizheng XU , Yue WANG
IPC: H04N19/137 , H04N19/132 , H04N19/186 , H04N19/176 , H04N19/70 , H04N19/46
Abstract: An example method of video processing includes performing a conversion between a block of a chroma component of a video and a bitstream representation of the video using a partitioning mode coding tool in which a final prediction of the chroma block is determined by blending predictions of the chroma block using weights that are based on the partitions. During the conversion, the weights are determined based on a type of chroma sample locations in the chroma component of the block.
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公开(公告)号：US20220272335A1
公开(公告)日：2022-08-25
申请号：US17735435
申请日：2022-05-03
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/117 , H04N19/82 , H04N19/186
Abstract: A method of video processing is described. The method includes determining, for a conversion between a current video unit of a video including one or more video blocks and a bitstream representation of the video, a padding process used for padding unavailable samples during application of a cross-component adaptive loop filtering (CC-ALF) tool to at least some video blocks of the current video unit according to a rule; and performing the conversion based on the determining, and wherein the rule specifies that the padding process is also used for padding unavailable samples during application of an adaptive loop filtering (ALF) tool to one or more video blocks of the current video unit.
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公开(公告)号：US20220272330A1
公开(公告)日：2022-08-25
申请号：US17727486
申请日：2022-04-22
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Jizheng XU , Yue WANG
IPC: H04N19/11 , H04N19/186 , H04N19/176 , H04N19/52 , H04N19/132
Abstract: A method of video processing includes making a determination, fora conversion between a current video block of a video and a coded representation of the video, of an affine merge candidate selectively according to a rule; and performing the conversion according to the determination. The rule specifies how the affine merge candidate is calculated without use of a log 2(X) operation where X is equal to or less than zero. The affine merge candidate is a motion candidate derived from neighboring affine coded video blocks.
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公开(公告)号：US20220264144A1
公开(公告)日：2022-08-18
申请号：US17729284
申请日：2022-04-26
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/52 , H04N19/176 , H04N19/184 , H04N19/70
Abstract: A method for video processing is provided. The method includes determining that a conversion between a current video block of a video and a coded representation of the current video block is based on a non-affine inter AMVR mode; and performing the conversion based on the determining, wherein the coded representation of the current video block is based on a context based coding, and wherein a context used for coding the current video block is modeled without using an affine AMVR mode information of a neighboring block during the conversion.
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