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公开(公告)号：US11700378B2
公开(公告)日：2023-07-11
申请号：US17847005
申请日：2022-06-22
Inventor： Zhipin Deng , Li Zhang , Hongbin Liu , Kai Zhang , Jizheng Xu , Yang Wang , Yue Wang
IPC: H04N19/176 , H04N19/132 , H04N19/105 , H04N19/137 , H04N19/70
CPC classification number: H04N19/132 , H04N19/105 , H04N19/137 , H04N19/176 , H04N19/70
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 bitstream representation of the video, an applicability of a geometric partitioning mode based on a rule; and performing the conversion based on the determining, and wherein the rule depends on a block width, a block height, and/or an aspect ratio of the current video block.
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公开(公告)号：US20230081842A1
公开(公告)日：2023-03-16
申请号：US17882590
申请日：2022-08-07
Inventor： Yang Wang , Li Zhang , Hongbin Liu , Kai Zhang , Yue Wang
IPC: H04N19/119 , H04N19/96 , H04N19/176 , H04N19/70
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：US20230073705A1
公开(公告)日：2023-03-09
申请号：US17979949
申请日：2022-11-03
Inventor： Yang Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/176 , H04N19/593 , H04N19/186 , H04N19/184 , H04N19/96
Abstract: A method of video processing includes deriving, for a conversion between a chroma block of a video and a bitstream representation of the video, parameters of a cross-component linear model by using downsampled luma samples that are generated from N above neighboring lines of a collocated luma block of the chroma block using a downsampling filter, where N is a positive integer; and performing the conversion using a predicted chroma block generated using the cross-component linear model.
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公开(公告)号：US12262006B2
公开(公告)日：2025-03-25
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：US12120304B2
公开(公告)日：2024-10-15
申请号：US17968553
申请日：2022-10-18
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. The method includes determining, for a conversion between a video comprising a video unit and a bitstream of the video, whether a first coding tool is enabled for the video unit according to a rule. The rule specifies that the first coding tool and a second coding tool are mutually exclusively enabled. The first coding tool or the second coding tool comprises a sign data hiding tool. The method also includes performing the conversion according to the determining.
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Patent Agency Ranking
公开(公告)号：US12114013B2
公开(公告)日：2024-10-08
申请号：US17540980
申请日：2021-12-02
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Zhipin Deng , Yang Wang , Yue Wang
IPC: H04N19/61 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/625
CPC classification number: H04N19/61 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/625
Abstract: Devices, systems and methods for digital video coding, which includes using multiple transforms, are described. In a representative aspect, a method for video processing includes making a decision, based on one or more decoded coefficients and in an absence of one or more transform indices, regarding an application of a transform to a current block of a video, and performing, based on the decision, a conversion between the current block and a bitstream representation of the video.
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公开(公告)号：US20240333978A1
公开(公告)日：2024-10-03
申请号：US18660356
申请日：2024-05-10
Inventor： Kai Zhang , Li Zhang , Zhipin Deng , Na Zhang , Yang Wang
IPC: H04N19/70 , H04N19/119 , H04N19/167 , H04N19/176 , H04N19/186
CPC classification number: H04N19/70 , H04N19/119 , H04N19/167 , H04N19/176 , H04N19/186
Abstract: A mechanism for processing video data is disclosed. A position of a last significant coefficient in a block of residual with a width (W) and a height (H) is determined based on whether W is non-dyadic and based on whether H is non-dyadic. A conversion between a visual media data and a bitstream is performed based on the position of the last significant coefficient in the block.
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公开(公告)号：US11979567B2
公开(公告)日：2024-05-07
申请号：US17982038
申请日：2022-11-07
Inventor： Yang Wang , Li Zhang , Hongbin Liu , Kai Zhang , Zhipin Deng , Yue Wang
IPC: H04N19/00 , H04N19/117 , H04N19/186 , H04N19/96
CPC classification number: H04N19/117 , H04N19/186 , H04N19/96
Abstract: A method for video processing is described. The method includes determining, for a conversion between a video unit of a video and a bitstream representation of the video, whether to enable a mirrored padding process for padding an unavailable luma sample during an application of a loop filtering tool to the video unit; and performing the conversion based on the determining.
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公开(公告)号：US11973931B2
公开(公告)日：2024-04-30
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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20.发明公开公开(公告)号：US20240129536A1
公开(公告)日：2024-04-18
申请号：US18396893
申请日：2023-12-27
Inventor： Ye-Kui Wang , Yang Wang , Li Zhang
IPC: H04N19/70 , H04N19/103 , H04N19/136 , H04N19/172 , H04N19/184
CPC classification number: H04N19/70 , H04N19/103 , H04N19/136 , H04N19/172 , H04N19/184
Abstract: A mechanism for processing video data is disclosed. A value of an extended dependent random-access point (EDRAP) leading pictures decodable flag (edrap_leading_pictures_decodable_flag) syntax element is determined. A conversion can then be performed between a visual media data and a bitstream based on the edrap_leading_pictures_decodable_flag syntax element. The value of the edrap_leading_pictures_decodable_flag indicates whether ordering constraints are imposed on the EDRAP picture.
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