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 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.