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A Fast Coeff_token Decoding Method for Efficient Implimentation of H.264/AVC CAVLC Decoder  

Moon, Yong-Ho (Dept. of Informatics, GyeongSang Nat'l Univ.)
Park, Tae-Hee (Dept. of Mechatronics Eng., TongMyong Univ.)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.45, no.5, 2008 , pp. 35-42 More about this Journal
Abstract
In this paper, we propose a fast coeff_token decoding method based on the re-constructed VLCT. Since the conventional decoding method is still based on large memory accesses, it is not suitable for the multimedia services such as PMP, PMB, DVH-H where fast decoding and low power consumption are required. Based on the analysis for the codeword structure, new structure of the codeword and the corresponding memory architecture are developed in this paper. The simulation results show that the proposed algorithm achieves memory access saving from 10% to 57%, compared to the conventional decoding method. This meant that the issues of tow power consumption and high speed decoding can be resolved without video-quality and coding efficiency degradation.
Keywords
Coeff_token; CAVLC; H.264/AVC; VLCT;
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