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

Hewei Liu,Guanghui Liu,Shuyuan Zhu,Ruiqin Xiong,Bing Zeng

doi:10.1109/vcip53242.2021.9675409

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

Hewei Liu, Guanghui Liu + Show 3 more

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https://doi.org/10.1109/vcip53242.2021.9675409

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Publication Date: Dec 5, 2021

Citations: 12

Affiliation: University of Electronic Science and Technology of China, Peking University

#CU Partition #Fast CU + Show 8 more

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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.

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