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公开(公告)号：US11412244B2
公开(公告)日：2022-08-09
申请号：US17356982
申请日：2021-06-24
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/105 , H04N19/159 , H04N19/44 , H04N19/132 , H04N19/176
Abstract: A prediction decoding method, a prediction decoding apparatus, and a computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples are obtained by acquiring neighbouring reference samples of a coding block, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are obtained according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples except the K reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples.
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公开(公告)号：US11924459B2
公开(公告)日：2024-03-05
申请号：US17453049
申请日：2021-11-01
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Wei Zhang , Fuzheng Yang , Qihong Ran
IPC: H04N19/52 , H04N19/109 , H04N19/139 , H04N19/176 , H04N19/184
CPC classification number: H04N19/52 , H04N19/109 , H04N19/139 , H04N19/176 , H04N19/184
Abstract: A method and apparatus for inter prediction. According to the position of a current block in a video picture, first motion information and second candidate motion information is determined, the motion information at least includes a motion vector; it is determined whether the distance between the motion vector of the first motion information and the motion vector of the second candidate motion information is greater than a first threshold; if the determination result is that the distance is less than or equal to the first threshold, the second candidate motion information is updated to obtain second motion information; if the determination result is that the distance is greater than the first threshold, the second candidate motion information is taken as the second motion information; and inter prediction is performed on the current block by using the first motion information and the second motion information.
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公开(公告)号：US11871020B2
公开(公告)日：2024-01-09
申请号：US17660992
申请日：2022-04-27
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/105 , H04N19/159 , H04N19/44 , H04N19/132 , H04N19/176
CPC classification number: H04N19/44 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A prediction decoding method, a prediction decoding apparatus, and a non-transitory computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples of a coding block are determined, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are determined according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples.
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公开(公告)号：US11870946B2
公开(公告)日：2024-01-09
申请号：US17660874
申请日：2022-04-27
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/105 , H04N19/159 , H04N19/44 , H04N19/132 , H04N19/176
CPC classification number: H04N19/44 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A prediction decoding method, a prediction decoding apparatus, and a non-transitory computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples of a coding block are determined, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are determined according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples.
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公开(公告)号：US12231649B2
公开(公告)日：2025-02-18
申请号：US17958420
申请日：2022-10-02
Inventor： Yanzhuo Ma , Junyan Huo , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N11/02 , H04N19/136 , H04N19/159 , H04N19/176
Abstract: Disclosed are an inter prediction method, encoder/decoder, and storage medium. The method includes: determining a prediction mode parameter of a current block; when the parameter indicates that a GPM is used for determining an inter prediction value of the current block, determining an angle and a distance corresponding to a dividing line in the current block, setting an angle index value and a distance index value to index serial numbers corresponding to the angle and the distance in a preset mapping table respectively; determining a value of shifting direction indicator of the current block, which is used for indicating shifting directions of different dividing lines of the current block at the angle, by using a preset model based on size information and the angle index value of the current block; performing inter prediction on the current block based on the value of shifting direction indicator and the distance index value.
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Patent Agency Ranking
公开(公告)号：US12149681B2
公开(公告)日：2024-11-19
申请号：US17953250
申请日：2022-09-26
Inventor： Yanzhuo Ma , Junyan Huo , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/105 , H04N19/119 , H04N19/61
Abstract: The inter prediction method comprises: determining a prediction mode parameter of a current block; determining a GPM parameter of the current block in response to that the prediction mode parameter indicates that a GPM is used to determine inter prediction of the current block; determining a first prediction value of a first partition of the current block and a second prediction value of a second partition of the current block; determining a weight index of a sample in the current block based on the GPM parameter of the current block; determining a first weight value and a second weight value of the sample in the current block based on the weight index of the sample in the current block; performing weighted combination of the first prediction value and the second prediction value to obtain the inter prediction of the current block.
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公开(公告)号：US11632554B2
公开(公告)日：2023-04-18
申请号：US17710475
申请日：2022-03-31
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/137 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: Provide are an inter prediction method, encoder, decoder, and storage medium. Said method comprises: determining a prediction mode parameter of the current block; when the prediction mode parameter indicates a geometrical partitioning prediction mode is used for determining inter prediction of the current block, determining a geometrical partitioning prediction mode parameter of the current block; according to the geometrical partitioning prediction mode parameter, determining a first and a second prediction value and a weight index corresponding to the sample in the current block; clipping the weight index corresponding to the sample in the current block to obtain absolute information of the weight index; determining a first and a second weight value based on absolute information of the weight index; and determining an inter prediction of the sample of the current block according to weighted combination of the first prediction value, first weight value, second prediction value and second weight value.
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公开(公告)号：US11973936B2
公开(公告)日：2024-04-30
申请号：US17723179
申请日：2022-04-18
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Xinwei Li , Qihong Ran
IPC: H04N19/105 , H04N19/176 , H04N19/186
CPC classification number: H04N19/105 , H04N19/176 , H04N19/186
Abstract: Colour component prediction method is provided, which includes that: first reference sample set corresponding to colour component to be predicted of coding block in video image is acquired; when available sample number in first reference sample set is less than preset number, preset component value is taken as predicted value corresponding to the colour component to be predicted; when available sample number in first reference sample set is not less than preset number, first reference sample set is screened to obtain second reference sample set; when available sample number in second reference sample set is equal to preset number, model parameter is determined through second reference sample set, and prediction model corresponding to colour component to be predicted is obtained based on model parameter, prediction model is used for prediction processing of colour component to be predicted to obtain predicted value corresponding to colour component to be predicted.
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公开(公告)号：US11863777B2
公开(公告)日：2024-01-02
申请号：US17660970
申请日：2022-04-27
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/105 , H04N19/159 , H04N19/44 , H04N19/132 , H04N19/176
CPC classification number: H04N19/44 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A prediction decoding method, a prediction decoding apparatus, and a non-transitory computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples of a coding block are determined, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are determined according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples.
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公开(公告)号：US11863776B2
公开(公告)日：2024-01-02
申请号：US17660917
申请日：2022-04-27
Inventor： Junyan Huo , Yanzhuo Ma , Shuai Wan , Fuzheng Yang , Qihong Ran
IPC: H04N19/105 , H04N19/159 , H04N19/44 , H04N19/132 , H04N19/176
CPC classification number: H04N19/44 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176
Abstract: A prediction decoding method, a prediction decoding apparatus, and a non-transitory computer storage medium are provided. The method includes the following. First multiple neighbouring reference samples of a coding block are determined, where the first multiple neighbouring reference samples include reference samples in a reference row or a reference column neighbouring the coding block. Positions corresponding to K reference samples are determined from a starting position of the reference row or the reference column, where K is a positive integer. Second multiple neighbouring reference samples are determined according to the determined positions corresponding to the K reference samples, where the second multiple neighbouring reference samples include neighbouring reference samples among the first multiple neighbouring reference samples. Prediction decoding is performed on the coding block according to the second multiple neighbouring reference samples.
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