Browse > Article

A New H.264/AVC CAVLC Parallel Decoding Circuit  

Yeo, Dong-Hoon (Mechatronics Engineering, Hanyang University)
Shin, Hyun-Chul (Electronic Engineering and Computer Science, Hanyang University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.45, no.11, 2008 , pp. 35-43 More about this Journal
Abstract
A new effective parallel decoding method has been developed for context-based adaptive variable length codes. In this paper, several new design ideas have been devised for scalable parallel processing, less area, and less power. First, simplified logical operations instead of memory look-ups are used for fast low power operations. Second the codes are grouped based on their lengths for efficient logical operation. Third, up to M bits of input are simultaneously analyzed. For comparison, we have designed the logical operation based parallel decoder for M=8 and a typical conventional method based decoder. High speed parallel decoding is possible with our method. For similar decoding rates (1.57codes/cycle for M=8), our new approach uses 46% less area than the typical conventional method.
Keywords
Parallel decoding; CAVLC; CAVLD; 0.264;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. Chang, C. Lin, and J. Guo, "A Novel Low-Cost High-Performance VLSI Architecture for MPEG-4 AVC/H.264 CAVLC Decoding," IEEE International Symposium on Circuits and Systems, Vol. 6, pp.6110-6113, 2005
2 "Joint Final Committee Draft (JFCD) of Joint Video Specification (ITU-T Rec. H.264 | ISO/IEC 14496-10 AVC)," Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, 4th Meeting, Klagenfurt, Austria, 2002
3 Y. Kim, Y. Yoo, J. Shin, B. Choi, and J. Paik, "Memory-Efficient H.264/AVC CAVLC for Fast Decoding," IEEE Transactions on Consumer Electronics, Vol. 52, No. 3, 2006
4 J. Nikara, S. Vassiliadis, J. Takala, P. Liuha, "Multiple-Symbol Parallel Decoding for Variable Length Codes," IEEE Trans. on Very Large Scale Integration Systems, Vol. 12, Issue 7, pp.676 - 685, 2004   DOI   ScienceOn
5 Y. Moon, G. Kim, and J. Kim, "An Efficient Decoding of CAVLC in H.264/AVC VideoCoding Standard," IEEE Transactions on Consumer Electronics, Vol. 51, No. 3, 2005
6 E. Iain, "H.264 and MPEG-4 Video Copression," Wiley, 2003