Cross-Block Difference Guided Fast CU Partition for VVC Intra Coding

01/14/2022

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by   Hewei Liu, et al.

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In this paper, we propose a new fast CU partition algorithm for VVC intra coding based on cross-block difference. This difference is measured by the gradient and the content of sub-blocks obtained from partition and is employed to guide the skipping of unnecessary horizontal and vertical partition modes. With this guidance, a fast determination of block partitions is accordingly achieved. Compared with VVC, our proposed method can save 41.64 encoding time with only 0.97