Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for improved zero out transform
A method of video decoding includes receiving a coded video bitstream including a current picture. The method further includes performing, to generate a prediction block, an optimized inverse transform process on a transform block that corresponds to a current block included in the current picture based on one of (i) a transform property of the inverse transform process and (ii) a block size of the transform block. The method further includes reconstructing the current block using the predicted block.
Tencent America LLC
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Xiang Shan Xin
Li Liu Zhao