Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for video coding
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. 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 affine based motion vector prediction. The processing circuitry determines a first affine model for the current block. The first affine model has first affine parameters. Then, the processing circuitry determines a second affine model for a first clipping region in the current block. The second affine model has second affine parameters with differences to the first affine parameters being smaller than a threshold. Motion vectors determined based on the second affine model satisfy a clipping requirement. The processing circuitry reconstructs a sample in the first clipping region based on the second affine model.
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Xiaozhong Xiang Shan Guichun
Xu Li Liu Li