Title :
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
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;
Conference_Titel :
Picture Coding Symposium (PCS), 2012
Conference_Location :
Krakow
Print_ISBN :
978-1-4577-2047-5
Electronic_ISBN :
978-1-4577-2048-2
DOI :
10.1109/PCS.2012.6213318
