Fast bypass mode for CABAC

Author

Hattori, Ryoji ; Sugimoto, Kazuo ; Itani, Yusuke ; Sekiguchi, Shun-ichi ; Murakami, Tokumichi

Author_Institution

Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan

fYear

2012

fDate

7-9 May 2012

Firstpage

417

Lastpage

420

Abstract

In this paper, improved bypass mode for CABAC called pass through mode is proposed. The bypass mode stands for a special coding process in CABAC to be used for encoding a symbol having equal probability. The proposed scheme realizes complexity reduction of the bypass mode in decoder without any loss of compression performance. We implemented the proposed scheme into test model software that is used for HEVC standardization process to evaluate its performance. Our experimental result shows that the run-time of the bypass mode process in decoder is reduced by about 60 %.

Keywords

adaptive codes; arithmetic codes; binary codes; data compression; decoding; probability; video coding; CABAC; HEVC standardization process; bypass mode; complexity reduction; compression performance; context-based adaptive binary arithmetic coder; decoder; pass through mode; probability; special coding process; symbol encoding; test model software; video coding; Complexity theory; Decoding; Encoding; Estimation; Software; Syntactics; Video coding; Bypass mode; CABAC; Entropy coding; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Picture Coding Symposium (PCS), 2012

Conference_Location

Krakow

Print_ISBN

978-1-4577-2047-5

Electronic_ISBN

978-1-4577-2048-2

Type

conf

DOI

10.1109/PCS.2012.6213318

Filename

6213318