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http://dx.doi.org/10.5909/JEB.2012.17.1.191

A Entropy Coding Method using Temporal and Spatial Correlation on HEVC  

Kim, Tae-Ryong (Dept. of Computer Engineering, College of Electronics and Information, Kyung Hee University)
Kim, Kyung-Yong (Dept. of Computer Engineering, College of Electronics and Information, Kyung Hee University)
Lee, Han-Soo (Dept. of Computer Engineering, College of Electronics and Information, Kyung Hee University)
Park, Gwang-Hoon (Dept. of Computer Engineering, College of Electronics and Information, Kyung Hee University)
Publication Information
Journal of Broadcast Engineering / v.17, no.1, 2012 , pp. 191-194 More about this Journal
Abstract
The split flag and the skip flag in CU syntax have high correlation on spatial domain as well as temporal domain. This paper suggests a method for enhancing coding efficiency by using not only spatial correlation but also temporal correlation when coding CU information. In the CABAC case, temporal collocated CU information is used for selecting context model of the split flag and the skip flag. In the CAVLC case, current CU information is estimated from temporal collocated CU information then encoded. As a result, a coding efficiency was increased by 0.1%~0.6% in CABAC, 0.1%~0.4% in CAVLC compared with HM 3.0. This method shows better performance on lowdelay condition which uses reference frame close to current frame.
Keywords
HEVC; Entropy Coding; CABAC; CAVLC;
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  • Reference
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