Oblon, McClelland, Maier & Neustadt, L.L.P.
Determination of parameters of an affine model
Aspects of the disclosure provide methods and apparatuses for video decoding. In some examples, an apparatus 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 model in a merge mode. Further, the processing circuitry obtains, from a buffer, motion information of bottom locations in a neighboring block that is adjacent of the current block in the current picture. Then the processing circuitry determines, based on the motion information of the bottom locations in the neighboring block, parameters of the affine model that is used to transform between the block and a reference block in a reference picture that has been reconstructed. Further, the processing circuitry reconstructs at least a sample of the current block based on the affine model.
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Xiang Xiaozhong Shan
Li Xu Liu