- 专利标题: METHOD AND APPARATUS FOR VIDEO CODING USING INTER-PREDICTION MODE SIGNALING TO DERTERMINE MOTION VECTORS
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申请号: US17494486申请日: 2021-10-05
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公开(公告)号: US20220094957A1公开(公告)日: 2022-03-24
- 发明人: Guichun LI , Xiang LI , Xiaozhong XU , Shan LIU
- 申请人: Guichun LI , Xiang LI , Xiaozhong XU , Shan LIU
- 申请人地址: US CA Milpitas; US CA Saratoga; US PA State College; US CA San Jose
- 专利权人: Guichun LI,Xiang LI,Xiaozhong XU,Shan LIU
- 当前专利权人: Guichun LI,Xiang LI,Xiaozhong XU,Shan LIU
- 当前专利权人地址: US CA Milpitas; US CA Saratoga; US PA State College; US CA San Jose
- 主分类号: H04N19/44
- IPC分类号: H04N19/44 ; H04N19/137 ; H04N19/46 ; H04N19/176 ; H04N19/105 ; H04N19/159 ; H04N19/186 ; H04N19/132 ; H04N19/513 ; H04N19/51 ; H04N19/109
摘要:
Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes receiving circuitry and processing circuitry. In some embodiments, the processing circuitry decodes prediction information of a current block in a current picture from a coded video bitstream. The prediction information is indicative of an inter prediction mode that signals a value associated with a motion vector difference in the coded video bitstream. The processing circuitry determines a precision for the motion vector difference based on a size of the current block, and converts the signaled value in the coded video bitstream to the motion vector difference based on the determined precision. Then, the processing circuitry determines a motion vector based on a prediction of the motion vector and the motion vector difference, and reconstructs at least a sample of the current block according to the motion vector.
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