Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for video coding using inter-prediction mode signaling to dertermine motion vectors
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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Shan Xiaozhong Xiang Guichun
Liu Xu Li Li