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公开(公告)号：US11677941B2
公开(公告)日：2023-06-13
申请号：US17115462
申请日：2020-12-08
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/119 , H04N19/52 , H04N19/139 , H04N19/105 , H04N19/176
CPC classification number: H04N19/119 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/52
Abstract: Devices, systems and methods for digital video coding, which includes using default motion candidates for video coding, are described. An exemplary method for video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, one or more motion candidates for a geometry partition mode using one or more pairwise average candidates that are obtained by averaging a pair of candidates in a motion candidate list for the current block. The geometry partition mode includes partitioning the current block into multiple partitions. The method also includes performing the conversion based on the determining.
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公开(公告)号：US11665343B2
公开(公告)日：2023-05-30
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: H04N19/176 , H04N19/70 , H04N19/117 , H04N19/174 , H04N19/186 , H04N19/80
CPC classification number: H04N19/117 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/80
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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公开(公告)号：US11665341B2
公开(公告)日：2023-05-30
申请号：US17585704
申请日：2022-01-27
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/132
CPC classification number: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: Devices, systems and methods for video processing are described. An example method for video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, a number of intra-coded neighboring blocks of the current block for a combined inter and intra prediction mode according to a rule that specifies a manner of treating a block coded using a palette coding mode in counting the number of intra-coded neighboring blocks for the combined inter and intra prediction mode. The method also includes performing the conversion based on the determining.
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公开(公告)号：US20230164313A1
公开(公告)日：2023-05-25
申请号：US17982038
申请日：2022-11-07
Inventor： Yang Wang , Li Zhang , Hongbin Liu , Kai Zhang , Zhipin Deng , Yue Wang
IPC: H04N19/117 , H04N19/186 , H04N19/96
CPC classification number: H04N19/117 , H04N19/96 , H04N19/186
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：US11659185B2
公开(公告)日：2023-05-23
申请号：US17479360
申请日：2021-09-20
Inventor： Zhipin Deng , Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu
IPC: H04N19/132 , G06F7/78 , H04N19/176 , H04N19/105 , H04N19/159 , G06F17/16
CPC classification number: H04N19/132 , G06F7/78 , G06F17/16 , H04N19/105 , H04N19/159 , 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 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 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 followed by an upsampling operation, where the upsampling operation is performed, in both a vertical direction and a horizontal direction in a fixed order, on samples obtained from the matrix vector multiplication operation.
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Patent Agency Ranking
公开(公告)号：US11659167B2
公开(公告)日：2023-05-23
申请号：US17727542
申请日：2022-04-22
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Zhipin Deng , Jizheng Xu , Yue Wang
IPC: H04N19/70 , H04N19/105 , H04N19/132 , H04N19/176
CPC classification number: H04N19/105 , H04N19/132 , H04N19/176 , H04N19/70
Abstract: A method of video processing includes determining, for a conversion between a current block of a video and a coded representation of the video, that a resolution of a current picture containing the current block and a reference picture used for the conversion are different, and performing the conversion based on the determining such that predicted values of a group of samples of the current block are generated using a horizontal or a vertical interpolation filter.
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公开(公告)号：US11659164B1
公开(公告)日：2023-05-23
申请号：US17406284
申请日：2021-08-19
Inventor： Zhipin Deng , Li Zhang , Hongbin Liu , Kai Zhang , Jizheng Xu
IPC: H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/169 , H04N19/30
CPC classification number: H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/1883 , H04N19/30
Abstract: A method for visual media processing, including: computing, during a conversion between a current video block of visual media data and a bitstream representation of the current video block, a cross-component linear model (CCLM) and/or a chroma residual scaling (CRS) factor for the current video block based, at least in part, on neighboring samples of a corresponding luma block which covers a top-left sample of a collocated luma block associated with the current video block, wherein one or more characteristics of the current video block are used for identifying the corresponding luma block.
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公开(公告)号：US11659162B2
公开(公告)日：2023-05-23
申请号：US17230048
申请日：2021-04-14
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yue Wang
IPC: H04N19/105 , H04N19/119 , H04N19/176 , H04N19/436 , H04N19/70 , H04N19/186 , H04N19/52 , H04N19/55 , H04N19/96
CPC classification number: H04N19/105 , H04N19/119 , H04N19/176 , H04N19/186 , H04N19/436 , H04N19/52 , H04N19/55 , H04N19/70 , H04N19/96
Abstract: A video processing method is provided to include: determining, based on a position rule, whether a local illumination compensation (LIC) tool is enabled for a conversion between a current block in a video region of a video and a coded representation of the video, and performing the conversion based on the position rule. The position rule specifies that the LIC tool is enabled for blocks on boundaries of the video region and disabled for blocks inside the video region and the LIC tool includes using a linear model of illumination changes in the current block during the conversion.
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公开(公告)号：US11653020B2
公开(公告)日：2023-05-16
申请号：US17204448
申请日：2021-03-17
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yue Wang
IPC: H04N19/52 , H04N19/176 , H04N19/184 , H04N19/70 , H04N19/132 , H04N19/137 , H04N19/159 , H04N19/186 , H04N19/513 , H04N19/56 , H04N19/53 , G06T7/223 , H04N19/139 , H04N19/523 , H04N19/567
CPC classification number: H04N19/52 , H04N19/132 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/513 , H04N19/53 , H04N19/56 , H04N19/70 , G06T7/223 , H04N19/139 , H04N19/523 , H04N19/567
Abstract: A method for video processing is provided. The method includes determining, based on a coding mode of a parent coding unit of a current coding unit that uses an affine coding mode or a rate-distortion (RD) cost of the affine coding mode, a usage of an adaptive motion vector resolution (AMVR) for a conversion between a coded representation of a current block of a video and the current block; and performing the conversion according to a result of the determining.
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公开(公告)号：US11652998B2
公开(公告)日：2023-05-16
申请号：US17701224
申请日：2022-03-22
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yue Wang
IPC: H04N19/82 , H04N19/132 , H04N19/105 , H04N19/176 , H04N19/117
CPC classification number: H04N19/132 , H04N19/105 , H04N19/117 , H04N19/176 , H04N19/82
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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