Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for video coding
Aspects of the disclosure provide a method and an apparatus for video coding. The apparatus includes processing circuitry. The processing circuitry is configured to decode prediction information of a current block in a current picture from a coded video bitstream. The prediction information can indicate a subblock-based merge mode for a plurality of subblocks in the current block. The processing circuitry is configured to determine whether to apply decoder-side motion vector refinement (DMVR) to one of the plurality of subblocks based on at least a mode type of the subblock-based merge mode. In response to the DMVR being determined to be applied to the one of the plurality of subblocks, the processing circuitry is configured to reconstruct the one of the plurality of subblocks according to the subblock-based merge mode with the DMVR. In an example, the mode type of the subblock-based merge mode is not an affine merge mode.
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Xiaozhong Guichun Xiang Shan
Xu Li Li Liu