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公开(公告)号：US20240276004A1
公开(公告)日：2024-08-15
申请号：US18568108
申请日：2022-06-13
发明人： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC分类号： H04N19/50 , H04N19/105 , H04N19/176
CPC分类号： H04N19/50 , H04N19/105 , H04N19/176
摘要： Embodiments of the present 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, whether to apply a first mode to generate a hypothesis of the target block, the target block being a multiple hypothesis prediction block coded with a second mode; and performing the conversion based on the determining. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency and performance.
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公开(公告)号：US20240275944A1
公开(公告)日：2024-08-15
申请号：US18569561
申请日：2022-06-22
发明人： Zhipin DENG , Li ZHANG , Kai ZHANG
IPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/70
CPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/70
摘要： 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, whether to insert a target motion candidate for the current video block into a prediction list for the current video block based on a comparison between the target motion candidate and at least one existing motion candidate in the prediction list; and performing the conversion based on the determination. The proposed method can advantageously fill the prediction list more efficiently.
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公开(公告)号：US20240244204A1
公开(公告)日：2024-07-18
申请号：US18622761
申请日：2024-03-29
发明人： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC分类号： H04N19/119 , H04N19/176
CPC分类号： H04N19/119 , H04N19/176
摘要： 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 target video block of a video and a bitstream of the video, prediction information of a target subblock in the target video block based on types of predicted samples in the target subblock, the target video block being coded by a geometric partitioning tool; and performing the conversion based on the prediction information of the target subblock.
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公开(公告)号：US20240223771A1
公开(公告)日：2024-07-04
申请号：US18287281
申请日：2022-04-19
发明人： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC分类号： H04N19/139 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/70
CPC分类号： H04N19/139 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/70
摘要： Embodiments of the present 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 video, first motion information of a plurality of geometric partitions of the target block based on a geometric partitioning mode (GPM) with motion vector differences (GMVD); and performing the conversion between the target block and the bitstream based on the first motion information, the bitstream including a first set of indications of GMVD information associated with the target block. Compared with the conventional solution, the proposed method can advantageously improve the encoding/decoding efficiency.
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公开(公告)号：US20240187567A1
公开(公告)日：2024-06-06
申请号：US18286212
申请日：2022-04-09
发明人： Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/186
CPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/186
摘要： Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a current block of a video and a bitstream, reference samples of a sub-template of the current block based on a first set of reference samples of the sub-template in a first reference list and a second set of reference samples of the sub-template in a second reference list; and determining a target motion candidate list based on the reference samples of the sub-template. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
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公开(公告)号：US20230048394A1
公开(公告)日：2023-02-16
申请号：US17942432
申请日：2022-09-12
发明人： Zhipin DENG , Ye-Kui WANG , Li ZHANG , Kai ZHANG
IPC分类号： H04N19/70 , H04N19/124 , H04N19/172 , H04N19/186 , H04N19/174 , H04N19/12 , H04N19/132 , H04N19/85 , H04N19/60
摘要： Methods, systems, and apparatus for video processing are described. One example video processing method includes performing a conversion between a video comprising a luma block and a bitstream of the video according to a rule. The rule specifies that whether a slice header (SH) includes a first syntax element is based on a second syntax element. The first syntax element indicates whether use of a delta quantization parameter (QP) is enabled for one or more coding units (CUs) of a specific slice of the luma block.
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公开(公告)号：US20220337867A1
公开(公告)日：2022-10-20
申请号：US17853076
申请日：2022-06-29
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yue WANG
IPC分类号： H04N19/52 , H04N19/176 , H04N19/159 , H04N19/139 , H04N19/132 , H04N19/119 , H04N19/105 , H04N19/46
摘要： Motion vector difference for block with geometric partition is described. One example method of video processing includes determining, for a conversion between a current video block of a video and a bitstream of the current video, that the current video block is coded with a geometric partitioning mode; deriving at least one refined motion vector (MV) for the current video block by adding at least one motion vector difference (MVD) of multiple MVDs signaled or derived for the current video block to a MV derived from a merge candidate associated with the current video block; and performing the conversion based on the refined MV.
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公开(公告)号：US20220312008A1
公开(公告)日：2022-09-29
申请号：US17837216
申请日：2022-06-10
发明人： Yang WANG , Li ZHANG , Hongbin LIU , Kai ZHANG , Zhipin DENG , Yue WANG
IPC分类号： H04N19/117 , H04N19/186 , H04N19/96
摘要： 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：US20220303533A1
公开(公告)日：2022-09-22
申请号：US17824304
申请日：2022-05-25
发明人： Zhipin DENG , Li ZHANG , Hongbin LIU , Kai ZHANG , Jizheng XU , Yang WANG , Yue WANG
IPC分类号： H04N19/119 , H04N19/137 , H04N19/132 , H04N19/176 , H04N19/70
摘要： A method of video processing is provided to comprise: performing a conversion between a current video block of a video and a bitstream representation of the video, wherein, during the conversion, a use of a geometric partitioning mode is allowed for the current video block, and wherein parameters of the geometric partitioning mode are computed using a set of angles including a first number of angles that is less than a first threshold value and/or a set of distances including a second number of distances that is less than a second threshold value.
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公开(公告)号：US20220264137A1
公开(公告)日：2022-08-18
申请号：US17718785
申请日：2022-04-12
发明人： Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Jizheng XU , Yue WANG
IPC分类号： H04N19/46 , H04N19/70 , H04N19/159 , H04N19/176
摘要： An example method of video processing includes performing a conversion between a video picture of a video and a bitstream representation of the video. The bitstream representation conforms to a format rule. The format rule specifies that applicability of a Decoder-side Motion Vector Refinement coding tool and a Bi-Directional Optical Flow coding tool for the video picture are indicated separately in the bitstream representation.
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