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公开(公告)号：US20240259608A1
公开(公告)日：2024-08-01
申请号：US18633278
申请日：2024-04-11
Inventor： Mehdi SALEHIFAR , Yuwen HE , Kai ZHANG , Na ZHANG , Li ZHANG
IPC: H04N19/88 , H04N19/176
CPC classification number: H04N19/88 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing comprises: reordering, during a conversion between a current video block of a video and a bitstream of the video, a plurality of candidate signs of a motion vector difference (MVD) for a motion candidate of the current video block; and performing the conversion based on the reordered plurality of candidate signs. Compared with the conventional solution, the proposed method can advantageously improve coding efficiency and coding quality.
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公开(公告)号：US20240251075A1
公开(公告)日：2024-07-25
申请号：US18628466
申请日：2024-04-05
IPC: H04N19/105 , H04N19/176 , H04N19/88
CPC classification number: H04N19/105 , H04N19/176 , H04N19/88
Abstract: 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 video block of a video and a bitstream of the video, a set of motion vector prediction (MVP) candidates of the target video block based on decoded information of the target video block; sorting the set of MVP candidates based on respective template matching costs of the set of MVP candidates; and performing the conversion based on the sorting.
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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
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/119 , H04N19/176
CPC classification number: H04N19/119 , H04N19/176
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 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
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/139 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/70
CPC classification number: H04N19/139 , H04N19/119 , H04N19/176 , H04N19/46 , H04N19/70
Abstract: 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：US20240205394A1
公开(公告)日：2024-06-20
申请号：US18288015
申请日：2022-04-21
Applicant: Bytedance Inc.
IPC: H04N19/117 , H04N19/159 , H04N19/82 , H04N19/86
CPC classification number: H04N19/117 , H04N19/159 , 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: reordering a plurality of samples in a region of a video during a conversion between the region and a bitstream of the video; and performing the conversion based on the reordered plurality of samples. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
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Patent Agency Ranking
公开(公告)号：US20240187575A1
公开(公告)日：2024-06-06
申请号：US18438013
申请日：2024-02-09
IPC: H04N19/11 , H04N19/105 , H04N19/159 , H04N19/186 , H04N19/196
CPC classification number: H04N19/11 , H04N19/105 , H04N19/159 , H04N19/186 , H04N19/196
Abstract: A method for video processing is proposed. The method comprises: deriving, during a conversion between a target unit of a video and a bitstream of the target unit, an intra prediction mode (IPM) of the target unit for at least one chroma component (2610), the target unit being applied with a target coding tool; obtaining a prediction of the target unit for the at least one chroma component using the IPM (2620); and performing the conversion based on the prediction of the target unit for the at least one chroma component (2630).
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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
Inventor： Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC: H04N19/105 , H04N19/139 , H04N19/176 , H04N19/186
CPC classification number: H04N19/105 , H04N19/139 , H04N19/176 , H04N19/186
Abstract: 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：US20230379478A1
公开(公告)日：2023-11-23
申请号：US18366339
申请日：2023-08-07
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/176 , H04N19/146 , H04N19/184 , H04N19/567 , H04N19/109
CPC classification number: H04N19/176 , H04N19/146 , H04N19/184 , H04N19/567 , H04N19/109
Abstract: A video processing method including inserting motion candidates in a first motion candidate list of a video region of a first video block using a list derivation rule, where the video region has a geometry shape that is a non-square and non-rectangular shape, and the first video block is coded with a geometry partition mode; and performing a conversion between the first video block and a bitstream of the first video block using the first motion candidate list.
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公开(公告)号：US20230291894A1
公开(公告)日：2023-09-14
申请号：US18321426
申请日：2023-05-22
Inventor： Li ZHANG , Jizheng XU , Kai ZHANG , Hongbin LIU , Weijia ZHU , Yue WANG
IPC: H04N19/105 , H04N19/176 , H04N19/186 , H04N19/189
CPC classification number: H04N19/105 , H04N19/176 , H04N19/186 , H04N19/189
Abstract: A method of video processing includes determining, for a conversion between a video component of a video comprising a current video block and a bitstream representation of the video, that a first coding tool is used based on a rule for the current video block; and performing the conversion according to the determining, wherein the first coding tool includes transforming a representation of a visual signal between two color spaces, and where the rule specifies that a first quantization parameter (QP) offset for a luma channel of the current video block is equal to K1 and a second QP offset for a first chroma channel of the current video block is K1+O, where K1 and O are integers.
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公开(公告)号：US20230060824A1
公开(公告)日：2023-03-02
申请号：US17580446
申请日：2022-01-20
Inventor： Weijia ZHU , Li ZHANG , Jizheng XU , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/159 , H04N19/139 , H04N19/105 , H04N19/186 , H04N19/176
Abstract: Devices, systems and methods for video processing are described. An example method for video processing includes performing a conversion between a video comprising luma blocks and corresponding chroma blocks and a bitstream representation of the video according to a rule that specifies that, for a case that a current luma block is coded using a palette coding mode and a corresponding current chroma block coded with a derived mode, the current luma block is treated as having a default intra prediction mode and the current chroma block is coded with the default intra prediction mode.
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