Oblon, McClelland, Maier & Neustadt, L.L.P.
Method and apparatus for implicit transform splitting
A method of video decoding for a decoder includes acquiring transform block signaling information from a coded video bitstream. The method further includes determining whether the transform block signaling information indicates that at least one of a plurality of transform block units (TUs) contains non-zero coefficients, the plurality of TUs being partitioned from a coding block unit (CU). The method further includes, in response to the determination that at least one of the plurality of TUs contains non-zero coefficients, (i) determining a coding tool specified for one of the at least one of the plurality of TUs, and (ii) performing, for each of the at least one of the plurality of TUs that contains non-zero coefficients, an inverse transform in accordance with the coding tool specified for the one of the at least one of the plurality of TUs.
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Xin Xiang Liang Shan
Zhao Li Zhao Liu