Fast Early Termination of CU Partition and Mode Selection Algorithm for Virtual Reality Video in HEVC

Virtual reality technology has become increasingly popular in recent years. It has more and more attempts and applications in online teaching, traffic safety, video and so on. Virtual reality video is popular because of its immersive feel. 360-degree video is one of the virtual reality videos. This...

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Bibliographic Details
Published in2019 Data Compression Conference (DCC) p. 576
Main Authors Guan, Xiaohan, Dong, Xiaosha, Zhang, Mengmeng, Liu, Zhi
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2019
Subjects
360 video
Complexity theory
Data compression
Encoding
HEVC
Image texture
intra prediction
mode decision
Partitioning algorithms
Virtual reality
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Summary:Virtual reality technology has become increasingly popular in recent years. It has more and more attempts and applications in online teaching, traffic safety, video and so on. Virtual reality video is popular because of its immersive feel. 360-degree video is one of the virtual reality videos. This type of video has a very high resolution, which makes its encoding time considerably long. To reduce the encoding complexity of virtual reality 360 video, this study proposed a fast early termination of CU partition and mode selection algorithm in HEVC. The proposed algorithm determines whether to terminate CU early or directly further divide in the CU partition process. On the other hand, the proposed algorithm saves time by reducing the number of candidate modes during the mode selection process. Experimental results show that the proposed algorithm can reduce the coding time by 54% and the BD-rate loss is only 1.4%.
ISSN:2375-0359
DOI:10.1109/DCC.2019.00088