Cross-Block Difference Guided Fast CU Partition for VVC Intra Coding
Hewei Liu, Shuyuan Zhu, Ruiqin Xiong, Guanghui Liu, Bing Zeng
20212021 International Conference on Visual Communications and Image Processing (VCIP)17 citationsDOI
Abstract
In this paper, we propose a new fast CU partition method for VVC intra coding based on the 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% (on average) encoding time with only 0.97% (on average) increase of BD-rate.
Topics & Concepts
Partition (number theory)Coding (social sciences)Computer scienceSignificant differenceBlock (permutation group theory)AlgorithmMathematicsStatisticsCombinatoricsVideo Coding and Compression TechnologiesAdvanced Data Compression TechniquesMultimedia Communication and Technology