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公开(公告)号：US20250047834A1
公开(公告)日：2025-02-06
申请号：US18910977
申请日：2024-10-09
Inventor： Junyan HUO , Yanzhuo MA , Fuzheng YANG , Hongqing DU , Ming LI
IPC: H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/82
Abstract: An encoding device, a decoding device, and a storage medium are provided. A reference sample value for a colour component of a current block is determined. A weighting factor is determined according to the reference sample value for the colour component of the current block. A first prediction block for a second colour component of the current block is determined according to the weighting factor and a reference sample value for the second colour component of the current block, where the number of prediction values of the second colour component of the first prediction block is greater than the number of second-colour-component samples in the current block. First filtering is performed on the first prediction block to determine a second prediction block for the second colour component of the current block. A reconstructed value of the second-colour-component sample in the current block is determined according to the second prediction block.
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公开(公告)号：US20250039413A1
公开(公告)日：2025-01-30
申请号：US18909187
申请日：2024-10-08
Inventor： Junyan HUO , Yanzhuo MA , Fuzheng YANG , Zhenyao ZHANG , Danni WANG , Ming LI
IPC: H04N19/186 , H04N19/117 , H04N19/176 , H04N19/59 , H04N19/80
Abstract: A method for decoding includes: reference information of a current block is determined; a filtering process is performed on at least partial information in the reference information of the current block, to determine target information of the current block; a respective one of weighting coefficients is determined according to each of reference sample values of a first color component in the target information; a prediction block of a second color component of the current block is determined according to the weighting coefficients and reference sample values of a second color component in the target information; and reconstructed values of second color component samples of the current block are determined according to the prediction block.
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公开(公告)号：US20250039358A1
公开(公告)日：2025-01-30
申请号：US18909593
申请日：2024-10-08
Inventor： Junyan HUO , Yanzhuo MA , Fuzheng YANG , Hongqing DU , Danni WANG , Ming LI
IPC: H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/82
Abstract: An encoding device, a decoding device, and a storage medium are provided. A reference sample value for a colour component of a current block is determined. A weighting factor is determined according to the reference sample value for the colour component of the current block. A first prediction block for a second colour component of the current block is determined according to the weighting factor and a reference sample value for the second colour component of the current block, where the number of prediction values of the second colour component of the first prediction block is greater than the number of second-colour-component samples in the current block. First filtering is performed on the first prediction block to determine a second prediction block for the second colour component of the current block. A reconstructed value of the second-colour-component sample in the current block is determined according to the second prediction block.
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公开(公告)号：US20240422330A1
公开(公告)日：2024-12-19
申请号：US18782956
申请日：2024-07-24
Inventor： Junyan HUO , Yanzhuo MA , Fuzheng YANG , Danni WANG , Hongqing DU , Ming LI
IPC: H04N19/186 , H04N19/105 , H04N19/176 , H04N19/50
Abstract: A coding method and apparatus, an encoding device, a decoding device, and a storage medium are provided. The method includes the following. A reference sample for a current block is determined. A weighting factor is determined according to the reference sample. A prediction value of a first colour component of a sample to-be-predicted in the current block is determined by weighting a first colour component value of the reference sample according to the weighting factor.
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公开(公告)号：US20230237707A1
公开(公告)日：2023-07-27
申请号：US18126538
申请日：2023-03-27
Inventor： Hui YUAN , Lu WANG , Ming LI , Xiaohui WANG , Qi LIU
IPC: G06T9/40
CPC classification number: G06T9/40
Abstract: A point cloud encoding method comprises: processing position information of a target point in a point cloud to obtain reconstruction information of the position information of the target point; obtaining an initial predicted value of attribute information of the target point according to the reconstruction information of the position information of the target point; filtering the initial predicted value of the attribute information of the target point using a Kalman filter algorithm to obtain a final predicted value of the attribute information of the target point; processing the attribute information of the target point in the point cloud to obtain a real value of the attribute information of the target point; obtaining a residual value of the attribute information of the target point according to the final predicted value and the real value of the attribute information of the target point; and encoding the residual value of the attribute information of the target point to obtain a bitstream.
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Patent Agency Ranking
公开(公告)号：US20250030842A1
公开(公告)日：2025-01-23
申请号：US18907838
申请日：2024-10-07
Inventor： Junyan HUO , Yanzhuo MA , Fuzheng YANG , Danni WANG , Hongqing DU , Ming LI
IPC: H04N19/105 , H04N19/132 , H04N19/176 , H04N19/186 , H04N19/42 , H04N19/50
Abstract: Disclosed are a coding method, a decoding method, and a decoding device. The decoding method includes: determining a reference sample value of a first color component of the current block; according to the reference sample value of the first color component of the current block, determining a weighting coefficient by means of a neural network model, wherein an input for the neural network model comprises the reference sample value of the first color component of the current block; according to the weighting coefficient and a reference sample value of a second color component of the current block, determining a predicted block of the second color component of the current block; and according to the predicted block, determining a reconstructed value of a sampling point of the second color component of the current block.
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公开(公告)号：US20250024040A1
公开(公告)日：2025-01-16
申请号：US18903937
申请日：2024-10-01
Inventor： Fuzheng YANG , Ming LI
IPC: H04N19/136 , H04N19/169
Abstract: Embodiments of the disclosure provide a method for index determination and a decoder. The method is applicable to a decoder and includes the following. A first index of a current node is determined based on occupied child nodes of a decoded neighbouring node of the current node on a k-th axis.
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公开(公告)号：US20240177353A1
公开(公告)日：2024-05-30
申请号：US18431412
申请日：2024-02-02
Inventor： Hui YUAN , Hao LIU , Tingting WANG , Ming LI
IPC: G06T9/00 , G06T3/4046
CPC classification number: G06T9/001 , G06T3/4046 , G06T9/002
Abstract: A GAN-based point cloud processing method, decoder and computer-readable storage medium are provided. The method includes: a first point cloud is input into a feature extraction module to obtain a first feature of a point in the first point cloud; the first feature is input into a coarse feature extension module to obtain a second feature; the second feature is input into a geometry generation module to map the second feature from a feature space to a geometric space to obtain a second point cloud; the second feature and the second point cloud are input into a geometric offset prediction module to determine the offset of points in the second point cloud in the geometric space; and a third point cloud according to the second point cloud and the offset is obtained.
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公开(公告)号：US20240062427A1
公开(公告)日：2024-02-22
申请号：US18497715
申请日：2023-10-30
Inventor： Hui YUAN , Jinrui XING , Tingting WANG , Ming LI
IPC: G06T9/00
CPC classification number: G06T9/001
Abstract: A point cloud encoding and decoding method and a decoder are provided. The decoder decodes a bitstream to determine filtering flag information corresponding to an initial point cloud, where the filtering flag information is used for determining whether to filter a reconstructed point cloud corresponding to the initial point cloud, determines a filtering coefficient when the filtering flag information indicates to filter the reconstructed point cloud, obtains a filtered point cloud corresponding to the reconstructed point cloud with the filtering coefficient, and updates the reconstructed point cloud with the filtered point cloud.
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10.发明公开公开(公告)号：US20230237704A1
公开(公告)日：2023-07-27
申请号：US18127435
申请日：2023-03-28
Inventor： Hui YUAN , Ming LI , Qi LIU , Lu WANG , Xiaohui WANG
IPC: G06T9/00
CPC classification number: G06T9/001
Abstract: A point cloud decoding method comprises: parsing a bitstream of a point cloud to obtain reconstructed information of position information of a target point in the point cloud; obtaining predicted values of attribute information of the target point according to the reconstruction information of the position information of the target point; parsing the bitstream to obtain residual values of the attribute information of the target point; obtaining initial reconstructed values of the attribute information of the target point according to the predicted values and the residual values of the attribute information of the target point; filtering the initial reconstructed values of the attribute information of the target point by using a Kalman filtering algorithm, to obtain final reconstructed values of the attribute information of the target point; and obtaining a decoded point cloud according to the final reconstructed values of the attribute information of the target point.
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