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公开(公告)号：US20250039375A1
公开(公告)日：2025-01-30
申请号：US18914488
申请日：2024-10-14
Inventor： Yang Wang , Li Zhang , Hongbin Liu , Kai Zhang , Yue Wang
IPC: H04N19/119 , H04N19/176 , H04N19/70 , H04N19/96
Abstract: BV list construction process of IBC blocks under merge estimation region is described. An example method of video processing includes determining, for a conversion between a current video block of a video and a bitstream of the video, one or more block vector (BV) candidates for the current video block based on a merge estimation region (MER) covering the current video block; adding the one or more BV candidates to a BV list associated with the current video block; and performing the conversion based on the BV list.
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公开(公告)号：US12206846B2
公开(公告)日：2025-01-21
申请号：US18509804
申请日：2023-11-15
Inventor： Yang Wang , Hongbin Liu , Li Zhang
IPC: H04N19/00 , H04N19/117 , H04N19/167 , H04N19/186
Abstract: Techniques for implementing adaptive loop filtering are described. One example method of video processing includes making a first determination, for a conversion between a video unit of a video and a bitstream of the video, a first luma adaptive loop filter (ALF) boundary across which a luma adaptive loop filter is selectively applied to a luma component of the video unit and a second luma ALF boundary; making a second determination, from the second luma ALF boundary, a chroma ALF boundary across which a chroma adaptive loop filter is selectively applied for a chroma component of the video unit; and performing the conversion based on the first determination and the second determination.
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公开(公告)号：US12063348B2
公开(公告)日：2024-08-13
申请号：US17691910
申请日：2022-03-10
Inventor： Yang Wang , Hongbin Liu , Li Zhang , Kai Zhang , Jizheng Xu , Yue Wang
IPC: H04N19/132 , H04N19/103 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/46 , H04N19/50
CPC classification number: H04N19/103 , H04N19/105 , H04N19/132 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/46 , H04N19/50
Abstract: A method of video processing is described. The method includes: deriving, for a conversion between a current block of a video and a coded representation of the video, a prediction block for the current block that is determined according to a tool in which weights are used to determine a weighted sum of two initial prediction blocks used to determine the prediction block; and performing the conversion using the prediction block; wherein the deriving includes: applying the weights to two intermediate prediction samples that respectively belong to the two initial prediction blocks to derive a final prediction sample; and performing a right shift operation for the final prediction sample, wherein the right shift operation is pbSample>> (shift1+3)), wherein pbSample represents the final prediction sample, shift1 is set equal to Max(2, 14−bitDepth); and determining the prediction block based on the final prediction sample.
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公开(公告)号：US20240236318A9
公开(公告)日：2024-07-11
申请号：US18400326
申请日：2023-12-29
Inventor： Kai Zhang , Li Zhang , Zhipin Deng , Na Zhang , Yang Wang
IPC: H04N19/119 , H04N19/103 , H04N19/136 , H04N19/169 , H04N19/61 , H04N19/70
CPC classification number: H04N19/119 , H04N19/103 , H04N19/136 , H04N19/1883 , H04N19/61 , H04N19/70
Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines to split a coding tree unit (CTU) into one or more coding units (CUs). One or more of the CUs may be one or more prediction tree units (PTUs). The mechanism further determines to recursively split the CUs into prediction units (PUs). The method performs a conversion between a visual media data and a bitstream based on the PUs.
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公开(公告)号：US20240155130A1
公开(公告)日：2024-05-09
申请号：US18503955
申请日：2023-11-07
Inventor： Yang Wang , Li Zhang , Zhipin Deng , Kai Zhang , Hongbin Liu
IPC: H04N19/137 , H04N19/119 , H04N19/176 , H04N19/189 , H04N19/70
CPC classification number: H04N19/137 , H04N19/119 , H04N19/176 , H04N19/189 , H04N19/70
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes performing a conversion between a block of a video and a bitstream of the video according to a rule. The conversion is based on an adaptive motion vector difference resolution (AMVR) tool, and the rule specifies that selection of a context for a first bin within a bin string of a first syntax element that specifies the resolution of the motion vector difference associated with an AMVR shift is derived based on usage of a coding mode for the block.
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Patent Agency Ranking
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.
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公开(公告)号：US20240056612A1
公开(公告)日：2024-02-15
申请号：US18484899
申请日：2023-10-11
Inventor： Wenbin Yin , Li Zhang , Kai Zhang , Yang Wang , Hongbin Liu
IPC: H04N19/82 , H04N19/132 , H04N19/126
CPC classification number: H04N19/82 , H04N19/132 , H04N19/126
Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data including a video unit and a bitstream. The conversion can be performed by a video encoder and/or a video decoder. The video unit is reconstructed, and a guided filter is applied to reconstructed samples in the video unit.
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公开(公告)号：US11902529B2
公开(公告)日：2024-02-13
申请号：US17968536
申请日：2022-10-18
Inventor： Yang Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/80 , H04N19/11 , H04N19/124 , H04N19/136 , H04N19/593
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.
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公开(公告)号：US20240048701A1
公开(公告)日：2024-02-08
申请号：US18486375
申请日：2023-10-13
Inventor： Kai Zhang , Li Zhang , Zhipin Deng , Na Zhang , Yang Wang
IPC: H04N19/119 , H04N19/167 , H04N19/96 , H04N19/176 , H04N19/70
CPC classification number: H04N19/119 , H04N19/167 , H04N19/96 , H04N19/176 , H04N19/70
Abstract: Systems, methods, and an apparatus for video processing are described. A video processing method includes determining an application of a partitioning scheme to a video block positioned at a boundary of a video unit based on a rule, and performing a conversion between a visual media data and a bitstream based on the application of the partitioning scheme to the video block.
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公开(公告)号：US20240031613A1
公开(公告)日：2024-01-25
申请号：US18476710
申请日：2023-09-28
Inventor： Kai Zhang , Li Zhang , Zhipin Deng , Na Zhang , Yang Wang
Abstract: A mechanism and method for processing video data is disclosed. The video processing method includes determining whether to enable a second partitioning scheme for coding of a current video unit according to a rule. The method includes performing a conversion between a video media data and a bitstream based on the rule.
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