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公开(公告)号：US20250080719A1
公开(公告)日：2025-03-06
申请号：US18286210
申请日：2022-04-08
Inventor： Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/52 , H04N19/54
Abstract: Embodiments of the present disclosure provide a solution for video processing. 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 coding mode based on motion vector difference (MVD); 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：US20250039466A1
公开(公告)日：2025-01-30
申请号：US18913910
申请日：2024-10-11
IPC: H04N19/80 , H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: determining, for a conversion between a video unit of a video and a bitstream of the video, a chroma interpolation filter for the video unit using a discrete cosine transform interpolation filter (DCT-IF), wherein the number of taps of the chroma interpolation filter is larger than a predetermined number; obtaining a chroma prediction block by applying the chroma interpolation filter to a chroma component of the video unit; and performing the conversion based on the chroma prediction block.
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公开(公告)号：US20250030866A1
公开(公告)日：2025-01-23
申请号：US18907218
申请日：2024-10-04
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/132 , H04N19/105 , H04N19/11 , H04N19/139 , H04N19/176 , H04N19/593
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: generating, for a conversion between a current video block of a video and a bitstream of the video, a motion candidate list for the current video block, an adjusting process being applied on a plurality of samples of the current video block; and performing the conversion based on the motion candidate list.
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公开(公告)号：US20250030864A1
公开(公告)日：2025-01-23
申请号：US18905875
申请日：2024-10-03
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/132 , H04N19/176 , H04N19/186 , H04N19/50
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, based on coded information of a current video block of a video for a conversion between the current video block and a bitstream of the video, whether an adjusting process is applied on a plurality of samples of the current video block; and performing the conversion based on the determination.
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公开(公告)号：US20240388693A1
公开(公告)日：2024-11-21
申请号：US18763948
申请日：2024-07-03
Inventor： Kai ZHANG , Li ZHANG , Zhipin DENG
IPC: H04N19/105 , H04N19/137 , 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, during a conversion between a target block of a video and a bitstream of the target block, motion information of a neighbor block of the target block; deriving a set of motion candidates for the target block based on the motion information and a set of affine parameters for the target block; and performing the conversion based on the set of motion candidates.
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Patent Agency Ranking
公开(公告)号：US20240380922A1
公开(公告)日：2024-11-14
申请号：US18286194
申请日：2022-04-08
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/56 , H04N19/176 , H04N19/184
Abstract: It provides a solution for video processing. A method for video processing is proposed. The method comprises: determining motion information for a video block of a video by conducting a refinement process on at least one of a first merge candidate or a second merge candidate for the video block, the second merge candidate being generated based on the first merge candidate; and performing a conversion between the video block and a bitstream of the video based on the motion information. Compared with the conventional solution, the proposed method can advantageously improve the coding performance.
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公开(公告)号：US20240380879A1
公开(公告)日：2024-11-14
申请号：US18562257
申请日：2022-05-19
IPC: H04N19/105 , H04N19/159 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: processing, during a conversion between a picture of a video and a bitstream of the video, a first video block in the picture based on a combination of decoder-side intra prediction mode derivation (DIMD) and multiple reference line (MRL), at least one intra prediction mode (IPM) being derived from the DIMD, and at least one non-adjacent reference line of reconstructed samples for the first video block being used in the combination of the DIMD and the MRL; and performing the conversion based on the first video block. 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：US20240364927A1
公开(公告)日：2024-10-31
申请号：US18763694
申请日：2024-07-03
Inventor： Wenyi WANG , Yingzhan XU , Kai ZHANG , Li ZHANG
IPC: H04N19/597 , H04N19/96
CPC classification number: H04N19/597 , H04N19/96
Abstract: Embodiments of the present disclosure provide a solution for point cloud coding. A method for point cloud coding is proposed. The method comprises: determining, during a conversion between a current frame of a point cloud sequence and a bitstream of the point cloud sequence, an occupancy state of a first node of the current frame, a node representing a spatial partition of the current frame, the occupancy state of the first node representing whether the first node is occupied by a point; determining a prediction of an occupancy indication of a second node of the current frame, the occupancy indication indicating an occupancy state of the second node; and performing the conversion based on the prediction of the occupancy indication.
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公开(公告)号：US20240314346A1
公开(公告)日：2024-09-19
申请号：US18671747
申请日：2024-05-22
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG , Yuwen HE
IPC: H04N19/513 , H04N19/176
CPC classification number: H04N19/513 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: refining, during a conversion between a target block of a video and a bitstream of the target block, a bi-motion vector predictor (MVP) of the target block by applying a decoder side motion vector derivation process, and wherein the target block is coded with an advanced motion vector prediction (AMVP) mode; and performing the conversion based on the refined bi-MVP.
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公开(公告)号：US20240259555A1
公开(公告)日：2024-08-01
申请号：US18622810
申请日：2024-03-29
Inventor： Na ZHANG , Kai ZHANG , Li ZHANG , Jizheng XU
IPC: H04N19/105 , H04N19/132 , H04N19/136 , H04N19/157 , H04N19/176
CPC classification number: H04N19/105 , H04N19/132 , H04N19/136 , H04N19/157 , 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, during a conversion between a target video block of a video and a bitstream of the video, whether a block vector (BV) candidate of the target video block is valid; in accordance with a determination that the BV candidate is valid, adding the BV candidate in an intra block copy (IBC) candidate list; and performing the conversion based on the IBC candidate list.
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