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28th Meeting: Mainz, DE, October 2022 2022-10-18 09:43
Non-EE2: Non-Separable Primary Transform for Intra Coding
Authors: Patrick Garus Qualcomm Muhammed Coban Qualcomm Bappaditya Ray Qualcomm Vadim Seregin Qualcomm Marta Karczewicz Qualcomm
Abstract
This contribution proposes to utilize Non-Separable Primary Transforms (NSPTs) for certain block sizes instead of separable DCT-II + LFNST. In the proposed design, DCT-II+LFNST is replaced by NSPT for TB sizes 4x4, 4x8, 8x4 and 8x8. The NSPT follow the design of LFNST for each block size, i.e. 35 transform sets depending on the intra mode and 3 candidates.
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