A new efficient bypass coding scheme based on logarithmic domain

This paper proposes a new efficient bypass coding scheme (EBCS) based on Logarithmic Binary Arithmetic Coding (LBAC). The bypass coding model is used to encode a symbol which has equal probability (0.5). The percentage of the bypass coding model is about 25 in CABAC of H.265/HEVC. The proposed EBCS...

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Bibliographic Details
Published in2015 Picture Coding Symposium (PCS) pp. 109 - 113
Main Authors Quanhe Yu, Xiaozhen Zheng, Jianhua Zheng, Yun He, Wei Yu, Dadong Wang, Junyou Chen, Yangyang Xu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2015
Subjects
Arithmetic coding
CABAC
Complexity theory
Decoding
Encoding
entropy coding
H.265/HEVC
Hardware
LBAC
Mathematical model
Video coding
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Summary:This paper proposes a new efficient bypass coding scheme (EBCS) based on Logarithmic Binary Arithmetic Coding (LBAC). The bypass coding model is used to encode a symbol which has equal probability (0.5). The percentage of the bypass coding model is about 25 in CABAC of H.265/HEVC. The proposed EBCS provides a hardware-efficient design that can significantly increase the processing speed, and it has a simple algorithm structure. Experimental results show that the EBCS can reduce bypass coding time by 60% roughly. For a hardware implementation in this paper, the overall processing speed is improved by about 96%, and the hardware cost is low.
DOI:10.1109/PCS.2015.7170057