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公开(公告)号：US20250047855A1
公开(公告)日：2025-02-06
申请号：US18896281
申请日：2024-09-25
Inventor： Li Zhang , Jizheng Xu , Kai Zhang , Hongbin Liu , Weijia Zhu
IPC: H04N19/13 , H04N19/176 , H04N19/70
Abstract: Method of processing video data is disclosed. A method for video processing includes dividing, for a conversion between a block of a video and a bitstream of the block, syntax elements associated with the block into different groups of syntax elements; applying controls on the different groups of syntax elements separately; and performing the conversion based on the controls.
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公开(公告)号：US20250024065A1
公开(公告)日：2025-01-16
申请号：US18895908
申请日：2024-09-25
Inventor： Hongbin Liu , Li Zhang , Kai Zhang , Yue Wang
IPC: H04N19/513 , H04N19/176
Abstract: A method for video processing is provided. The method includes making a determination, for a conversion between a current video block of a video and a coded representation of the current video block, of whether to use a symmetric motion vector difference (SMVD) mode based on a currently selected best mode for the conversion; and performing the conversion based on the determining.
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公开(公告)号：US12184865B2
公开(公告)日：2024-12-31
申请号：US18310344
申请日：2023-05-01
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/149 , H04N19/105 , H04N19/11 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/189 , H04N19/30 , H04N19/42 , H04N19/50 , H04N19/593 , H04N19/70
Abstract: A method for video processing is provided. The method includes determining, for a conversion between a current video block of a video that is a chroma block and a coded representation of the video, multiple sets of parameters, wherein each set of parameters defines a cross-component linear model (CCLM) and is derived from a corresponding group of chroma samples at corresponding chroma sample positions; determining, based on the multiple sets of parameters, parameters for a final CCLM; and performing the conversion based on the final CCLM.
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公开(公告)号：US12170766B2
公开(公告)日：2024-12-17
申请号：US17958531
申请日：2022-10-03
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/117 , H04N19/124 , H04N19/186 , H04N19/196 , H04N19/70 , H04N19/86 , H04N19/157
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video and a bitstream of the video according to a format rule. The format rule specifies that a first field at a sequence level or a picture level or a slice level controls a value of a second field in an adaptation parameter set.
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公开(公告)号：US12166968B2
公开(公告)日：2024-12-10
申请号：US17895511
申请日：2022-08-25
Inventor： Zhipin Deng , Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu
IPC: H04N19/132 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/70
Abstract: Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block according to a rule, where the rule specifies a relationship between samples of the current video block and matrices or offset values applied in a matrix weighted intra prediction (MIP) mode during the conversion, and where the MIP mode includes determining a prediction block of the current video block by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation.
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Patent Agency Ranking
公开(公告)号：US12137257B2
公开(公告)日：2024-11-05
申请号：US17389179
申请日：2021-07-29
Inventor： Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu , Yue Wang
IPC: H04N19/96 , H04N19/119 , H04N19/12 , H04N19/122 , H04N19/13 , H04N19/132 , H04N19/136 , H04N19/157 , H04N19/172 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/46 , H04N19/70
Abstract: A method for processing a video includes determining a valid splitting type for a current video block; determining whether or how to signal a splitting type to be used for the current video block based on the determination of the valid splitting type; and performing a conversion between the current video block and a bitstream representation of the current video block in accordance with the determining results.
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公开(公告)号：US12137252B2
公开(公告)日：2024-11-05
申请号：US18450647
申请日：2023-08-16
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/46 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/70
Abstract: Systems, methods, and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号：US12136188B2
公开(公告)日：2024-11-05
申请号：US17453968
申请日：2021-11-08
Inventor： Meng Wang , Jizheng Xu , Li Zhang , Shiqi Wang
IPC: G06T3/4076 , G06T3/4046
Abstract: Embodiments of the present disclosure provide a solution for image/video super resolution. A method for image processing is proposed. The method comprises: receiving a first image with a first resolution and at least one reference image associated with the first image, the first image and the at least one reference image being associated with a same video; determining a difference between the first image and the at least one reference image; and generating a second image with a second resolution based on the difference, the first image and the at least one reference image, the second resolution being higher than the first resolution.
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公开(公告)号：US12132884B2
公开(公告)日：2024-10-29
申请号：US17585704
申请日：2022-01-27
Inventor： Weijia Zhu , Li Zhang , Jizheng Xu , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70
CPC classification number: H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: Devices, systems and methods for video processing are described. An example method for video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, a number of intra-coded neighboring blocks of the current block for a combined inter and intra prediction mode according to a rule that specifies a manner of treating a block coded using a palette coding mode in counting the number of intra-coded neighboring blocks for the combined inter and intra prediction mode. The method also includes performing the conversion based on the determining.
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公开(公告)号：US20240357174A1
公开(公告)日：2024-10-24
申请号：US18763998
申请日：2024-07-03
Inventor： Yingzhan Xu , Wenyi Wang , Kai Zhang , Li Zhang
IPC: H04N19/597 , H04N19/159 , H04N19/513
CPC classification number: H04N19/597 , H04N19/159 , H04N19/513
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, based on a target motion information between a current frame of a point cloud sequence and a reference frame of the current frame during a conversion between the current frame and a bitstream of the point cloud sequence, whether an attribute inter prediction is performed on the current frame based on the reference frame, the target motion information being used for performing a motion compensation on the reference frame; and performing the conversion based on the determination.
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