A fast CU decision using image variance in HEVC intra coding

Author

Nishikori, Taiki ; Nakamura, T. ; Yoshitome, Takeshi ; Mishiba, Kazu

Author_Institution

Dept. of Inf. & Electron., Tottori Univ., Tottori, Japan

fYear

2013

fDate

22-25 Sept. 2013

Firstpage

52

Lastpage

56

Abstract

As the next generation standard of video coding, high efficiency video coding (HEVC) achieves high coding efficiency. The coding unit (CU) was adopted as the processing unit for HEVC to improve the coding efficiency. However, determining the optimal distribution of CU sizes requires lengthy calculation. To reduce the calculation time in intra prediction processing, we developed a method that determines the CU sizes using the variance value of the input image. Experimental results show that the proposed method reduces encoding time by about 40-70% compared to that of a conventional HEVC test model.

Keywords

code standards; prediction theory; video coding; CU decision; HEVC intra coding; calculation time reduction; coding efficiency; coding unit; high efficiency video coding; image variance; intra prediction processing; next generation standard; optimal CU size distribution; processing unit; Boats; Encoding; Image coding; Image quality; Industrial electronics; Standards; Video coding; CU; HEVC; inta prediction; video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ISIEA), 2013 IEEE Symposium on

Conference_Location

Kuching

Print_ISBN

978-1-4799-1124-0

Type

conf

DOI

10.1109/ISIEA.2013.6738966

Filename

6738966