Sughrue Mion, PLLC
Method, apparatus and medium for decoding or encoding
A method of utilizing an 8-bit primary transform core matrix to decode/encode may include determining whether to use a first transform core matrix that is a DST-7 primary transform core matrix which is larger than or equal to 8-point and represented by 8-bits. When a result of the determination is to use the first transform core matrix, the method may include: (i) deriving the first transform core based on a set of unique numbers, and (ii) causing a target data block to be encoded or decoded using the derived primary transform core. The method may further include, when a result of the determination is to not use the first primary transform: (i) deriving a second transform core based on the same set of unique numbers, and (ii) causing the target data block to be encoded or decoded using the derived second transform core.
TENCENT AMERICA LLC
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Shan Xiang Xin
Liu Li Zhao