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公开(公告)号:US20240364866A1
公开(公告)日:2024-10-31
申请号:US18764091
申请日:2024-07-03
IPC: H04N19/105 , H04N19/176 , H04N19/194 , H04N19/88
CPC classification number: H04N19/105 , H04N19/176 , H04N19/194 , 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 be-tween a target video block of a video and a bitstream of the video, at least one group of motion vector prediction (MVP) candidates of the target video block; determining a first MVP candidate list by performing a first pass of reordering process on the at least one group of MVP candidates; determining a second MVP candidate list by performing a second pass of reordering process on the first MVP candidate list; and performing the conversion based on the second MVP candidate list. In this way, a proper MVP candidate list can be determined by using the first and second passes of reordering, and thus the coding effectiveness and coding efficiency can be improved.
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公开(公告)号:US20240275984A1
公开(公告)日:2024-08-15
申请号:US18566932
申请日:2022-06-02
IPC: H04N19/147 , H04N19/176
CPC classification number: H04N19/147 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining a cost during a conversion between a current video block of a video and a bitstream of the video, the cost indicting a degree of distortion between two target blocks of the video and an amount of information for refinement of coding data of the current video block; refining the coding data based on the cost and the two target blocks; and performing the conversion based on the refined coding data. Compared with the conventional solution, the proposed method can advantageously reduce the coding bits while maintaining the coding quality.
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公开(公告)号:US20240267536A1
公开(公告)日:2024-08-08
申请号:US18564507
申请日:2022-05-26
IPC: H04N19/159 , H04N19/176
CPC classification number: H04N19/159 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for processing video data. A method for processing video data is proposed. The method comprises: performing, during a conversion between a current block of a video and a bitstream of the video, an intra prediction for the current block based on at least one first parameter different from at least one second parameter used for an intra prediction of a normal angular mode, at least one extended angular mode being used for the current block; and performing the conversion based on the intra prediction mode. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
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公开(公告)号:US20240259607A1
公开(公告)日:2024-08-01
申请号:US18290118
申请日:2022-05-13
Inventor: Wenbin YIN , Li ZHANG , Haibin YIN , Huade SHI
IPC: H04N19/85 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/172 , H04N19/174 , H04N19/30 , H04N19/80 , H04N19/96
CPC classification number: H04N19/85 , H04N19/105 , H04N19/117 , H04N19/119 , H04N19/132 , H04N19/139 , H04N19/172 , H04N19/174 , H04N19/30 , H04N19/80 , H04N19/96
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 video part of a video and a bitstream of the video, a process applied to the current video part at least based on coding information of the current video part, the determined process comprises at least one of an upsampling process or an enhancement process; and performing the conversion based on the determined process. The method in accordance with the present disclosure improves the coding process of the current video unit. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency and an image/video of larger size with more pixels and better visual quality is achieved.
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公开(公告)号:US20240259558A1
公开(公告)日:2024-08-01
申请号:US18636003
申请日:2024-04-15
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: obtaining, during a conversion between a target block of a video and a bitstream of the video, a list of regular merge candidates for the target block in a regular merge mode; reordering the list of regular merge candidates based on a determination whether a condition is satisfied to perform decoder-side motion vector refinement (DMVR) or multi-pass DMVR process for a regular merge candidate in the list of regular merge candidates; and performing the conversion based on the reordered list of regular merge candidates. Compared with the conventional solution, the proposed method can advantageously improve the coding effectiveness and coding efficiency.
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公开(公告)号:US20240223807A1
公开(公告)日:2024-07-04
申请号:US18603149
申请日:2024-03-12
Inventor: Yingzhan XU , Kai ZHANG , Li ZHANG
IPC: H04N19/597 , H04N19/70
CPC classification number: H04N19/597 , H04N19/70
Abstract: Embodiments of the present disclosure provide a method for point cloud coding. The method comprises: determining, during a conversion between a point cloud sequence and a bitstream of the point cloud sequence, an information unit for a current sample of the point cloud sequence and at least one parameter value, the information unit being obtained by coding the current sample with the at least one parameter value, the at least one parameter value being absent from the information unit; and performing the conversion based on the information unit and the at least one parameter value. Compared with the conventional solution, the proposed method can advantageously improve coding efficiency.
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公开(公告)号:US20240214602A1
公开(公告)日:2024-06-27
申请号:US18286208
申请日:2022-04-08
Inventor: Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/52 , H04N19/176
CPC classification number: H04N19/52 , H04N19/176
Abstract: A method for video processing is proposed. The method comprises: deriving. during a conversion between a video unit of a video and a bitstream of the video. motion information of a plurality of parts of the video unit from a same merge candidate (1310): and performing the conversion based on the derived motion information (1320). The proposed method can advantageously improve the encoding/decoding efficiency.
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公开(公告)号:US20240205425A1
公开(公告)日:2024-06-20
申请号:US18286213
申请日:2022-04-08
Inventor: Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC: H04N19/176 , H04N19/139
CPC classification number: H04N19/176 , H04N19/139
Abstract: A method for video processing is proposed. The method comprises: constructing a list of merge candidates for a target block of a video in a subblock based merge mode: reordering the list of merge candidates for the target block; and performing a conversion between the target block and a bitstream of the video based on the reordered list of merge candidates. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
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公开(公告)号:US20240205414A1
公开(公告)日:2024-06-20
申请号:US18286211
申请日:2022-04-08
Inventor: Zhipin DENG , Li ZHANG , Kai ZHANG , Na ZHANG , Yang WANG
IPC: H04N19/139 , H04N19/119 , H04N19/176 , H04N19/70
CPC classification number: H04N19/139 , H04N19/119 , H04N19/176 , 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 in a target picture of a video and a bitstream of the video, first motion information of the target block based on a regular merge mode, the first motion information comprising a regular merge list of regular merge candidates for the target block; determining second motion information from the first motion information based on a geometric partitioning-based merge mode and a redundancy check, the second motion information comprising a geometric partitioning-based merge list of geometric partitioning-based merge candidates for the target block; and performing the conversion based on the first motion information and the second motion information. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency and compression ratios.
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公开(公告)号:US20240195986A1
公开(公告)日:2024-06-13
申请号:US18418037
申请日:2024-01-19
Inventor: Yan HUANG , Jizheng XU , Li ZHANG , Li SONG
IPC: H04N19/176 , G06V10/74 , H04N19/119 , H04N19/159 , H04N19/96
CPC classification number: H04N19/176 , G06V10/761 , H04N19/119 , H04N19/159 , H04N19/96
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 prediction of coding time for the target video block, the coding time representing a time duration during which a coding process of the target video block being performed; adjusting the coding process for the target video block based at least in part on the prediction of coding time; and performing the conversion between the target video block and the bitstream by using the adjusted coding process.
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