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1.发明公开
公开(公告)号：EP3840384A1
公开(公告)日：2021-06-23
申请号：EP19853307.7
申请日：2019-08-22
发明人： CHEN, Huanbang , FU, Ting , YANG, Haitao
IPC分类号： H04N19/513
摘要： Embodiments of this application relate to the field of video image coding technologies, and disclose a method for constructing a candidate motion information list, a prediction method, and an apparatus, to achieve low calculation complexity and a low delay. The construction method includes: performing a first processing process on all neighboring image blocks of a current image block until a quantity of candidate motion information sets in a candidate motion information list is equal to a first preset value or all the neighboring image blocks are traversed; then traversing at least two extra to be selected motion information sets, and storing, in the candidate motion information list, an extra to be selected motion information set that satisfies a preset condition, until the quantity of candidate motion information sets in the candidate motion information list is equal to a preset quantity value or the extra to be selected motion information sets are traversed; and if a quantity of candidate motion information sets in the candidate motion information list is less than the preset quantity value after the extra to be selected motion information sets are traversed, filling the candidate motion information list with a first preset candidate motion information set until the quantity of candidate motion information sets in the candidate motion information list is equal to the preset quantity value.
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公开(公告)号：EP4362468A3
公开(公告)日：2024-06-26
申请号：EP24163139.9
申请日：2019-07-02
发明人： CHEN, Huanbang , YANG, Haitao , CHEN, Jianle , XU, Weiwei , FU, Ting , FU, Jiali
IPC分类号： H04N19/593 , H04N19/33 , H04N19/105 , H04N19/176 , H04N19/53 , H04N19/70
CPC分类号： H04N19/593 , H04N19/105 , H04N19/70 , H04N19/176 , H04N19/53
摘要： A decoding method is provided. The method includes: parsing a bitstream to obtain a syntax element, where the syntax element includes at least an index of candidate motion information of a current block (s151); determining, based on the syntax element, to construct a first list or a second list for the current block (s152), where the first list is a block-based candidate motion information list, and the second list is a subblock-based candidate motion information list; determining motion information from the first list or the second list based on the index (s153); and predicting the current block based on the motion information (s154). In this method, the block-based candidate motion information list and the subblock-based candidate motion information list are distinguished from each other. This effectively reduces transmission costs of the candidate motion information.
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公开(公告)号：EP4362468A2
公开(公告)日：2024-05-01
申请号：EP24163139.9
申请日：2019-07-02
发明人： CHEN, Huanbang , YANG, Haitao , CHEN, Jianle , XU, Weiwei , FU, Ting , FU, Jiali
IPC分类号： H04N19/70
CPC分类号： H04N19/593 , H04N19/105 , H04N19/70 , H04N19/176 , H04N19/53
摘要： A decoding method is provided. The method includes: parsing a bitstream to obtain a syntax element, where the syntax element includes at least an index of candidate motion information of a current block (s151); determining, based on the syntax element, to construct a first list or a second list for the current block (s152), where the first list is a block-based candidate motion information list, and the second list is a subblock-based candidate motion information list; determining motion information from the first list or the second list based on the index (s153); and predicting the current block based on the motion information (s154). In this method, the block-based candidate motion information list and the subblock-based candidate motion information list are distinguished from each other. This effectively reduces transmission costs of the candidate motion information.
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公开(公告)号：EP3809705A1
公开(公告)日：2021-04-21
申请号：EP19831026.0
申请日：2019-07-02
发明人： CHEN, Huanbang , YANG, Haitao , CHEN, Jianle , XU, Weiwei , FU, Ting , FU, Jiali
IPC分类号： H04N19/593 , H04N19/33 , H04N19/105 , H04N19/176 , H04N19/53 , H04N19/70
摘要： A decoding method is provided. The method includes: parsing a bitstream to obtain a syntax element, where the syntax element includes at least an index of optimal candidate motion information of a current block (s151); determining, based on the syntax element, to construct a first list or a second list for the current block (s152), where the first list is a block-based candidate motion information list, and the second list is a subblock-based candidate motion information list; determining optimal motion information from the first list or the second list based on the index (s153); and predicting the current block based on the optimal motion information (s154). In this method, the block (BLOCK)-based candidate motion information list and the subblock (SUB-BLOCK)-based candidate motion information list are distinguished from each other. This effectively reduces transmission costs of the optimal candidate motion information.
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公开(公告)号：EP3840382A1
公开(公告)日：2021-06-23
申请号：EP19855516.1
申请日：2019-06-13
发明人： FU, Ting , CHEN, Huanbang , YANG, Haitao
IPC分类号： H04N19/503
摘要： This application provides an inter prediction method and apparatus, a video encoder, and a video decoder. The method includes: determining N target picture blocks from M picture blocks in which M neighboring locations of a current picture block are respectively located, where any two of the N target picture blocks are different, M and N are both positive integers, and M is greater than or equal to N; determining candidate motion information of the current picture block based on motion information of the N target picture blocks, and adding the candidate motion information of the current picture block to a motion information candidate list of the current picture block; and performing inter prediction on the current picture block based on the motion information candidate list. In this application, comparison operations during obtaining of the motion information candidate list can be reduced, to improve inter prediction efficiency.
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