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公开(公告)号：US20240236334A9
公开(公告)日：2024-07-11
申请号：US18399574
申请日：2023-12-28
Inventor： Yang WANG , Li ZHANG , Kai ZHANG , Zhipin DENG
IPC: H04N19/159 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/189
CPC classification number: H04N19/159 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/189
Abstract: Embodiments of the present disclosure provide a method for video processing. The method comprises: determining, during a conversion between a current video block of a video and a bitstream of the video, at least one target intra prediction mode for the current video block based on neighboring reconstructed samples of the current video block; determining a prediction or a reconstruction of the current video block based on a combination of the at least one target intra prediction mode and one of an inter coding tool or a candidate coding tool, the candidate coding tool being used for determining a reference block for the current video block with samples in a current picture associated with the current video block; and performing the conversion based on the prediction or the reconstruction of the current video. Compare with conventional solutions, the proposed method can advantageously improve coding efficiency and coding quality.
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公开(公告)号：US20240214565A1
公开(公告)日：2024-06-27
申请号：US18284511
申请日：2022-03-31
Inventor： Hongbin LIU , Li ZHANG , Kui FAN , Xiaolong JIANG , Haibin YIN , Yuwen HE , Yingming FAN
IPC: H04N19/117 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/80
CPC classification number: H04N19/117 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/80
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining a reference picture for a target picture of a video; determining whether the reference picture is to be used for filtering the target picture based at least in part on a difference between the reference picture and the target picture; and in accordance with a determination that the reference picture is to be used for filtering the target picture, performing temporal filtering on the target picture based on the reference picture. Compared with the conventional solution, the proposed method can advantageously improve the coding speed and efficiency.
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公开(公告)号：US20240205392A1
公开(公告)日：2024-06-20
申请号：US18286089
申请日：2022-04-07
Inventor： Yang WANG , Li ZHANG , Kai ZHANG , Zhipin DENG , Wenbin YIN
IPC: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/593 , H04N19/80
CPC classification number: H04N19/11 , H04N19/105 , H04N19/176 , H04N19/593 , H04N19/80
Abstract: Embodiments of the present disclosure provide a solution for processing video data. A method for processing video data is proposed. The method comprises: constructing, based on a plurality of intra prediction modes, a candidate list for a current block of a video, the number of the plurality of intra prediction modes being smaller than a preset value; and performing a conversion between the current block and a bitstream of the video based on the candidate list, an intra prediction mode of the current block being derived based on neighbouring samples of the current block. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
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公开(公告)号：US20240196002A1
公开(公告)日：2024-06-13
申请号：US18287603
申请日：2022-04-21
Inventor： Zhipin DENG , Li ZHANG , Kai ZHANG , Na ZHANG
IPC: H04N19/52 , H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/82 , H04N19/86
CPC classification number: H04N19/52 , H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/82 , H04N19/86
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, during a conversion between a first video unit in a target picture of a video and a bitstream of the video, second coding data of the first video unit based on first coding data of the first video unit and a refinement process, the first coding data being coded by a target coding mode; determining the use of the first coding data or the second coding data for processing a second video unit subsequent to the first video unit based on the target coding mode; and performing the conversion based on the target coding data. Compared with the conventional solution, the proposed method can advantageously improve the coding performance and efficiency.
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公开(公告)号：US20240146973A1
公开(公告)日：2024-05-02
申请号：US18526632
申请日：2023-12-01
Inventor： Zhipin DENG , Ye-Kui WANG , Li ZHANG , Kai ZHANG
IPC: H04N19/70 , H04N19/117 , H04N19/12 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/157 , H04N19/169 , H04N19/17 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/30 , H04N19/60 , H04N19/85
CPC classification number: H04N19/70 , H04N19/117 , H04N19/12 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/157 , H04N19/17 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/188 , H04N19/1887 , H04N19/30 , H04N19/60 , H04N19/85
Abstract: Methods, systems and apparatus for video processing are described. One example video processing method includes performing a conversion between a video including a video region and a bitstream of the video according to a rule, wherein the rule specifies that an adaptive loop filtering operation is allowed for the video region in response to an absence of one or more adaptation parameter set (APS) network abstraction layer (NAL) units that include adaptive loop filtering data.
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Patent Agency Ranking
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：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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