公开(公告)号：US20220094957A1

公开(公告)日：2022-03-24

申请号：US17494486

申请日：2021-10-05

申请人： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Shan LIU

发明人： Guichun LI ,  Xiang LI ,  Xiaozhong XU ,  Shan LIU

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.