Title :
A Pattern-Search Method for H.264/AVC CAVLC Decoding
Author :
Tseng, Shau-Yin ; Hsieh, Tien-Wei
Author_Institution :
Ind. Technol. Res. Inst., SoC Technol. Center, Hsinchu
Abstract :
In this paper, a new implementation method is proposed for context-adaptive variable length coding (CAVLC) used in H.264 baseline profile. We analyze the correlation between bit patterns and 4times4 (or 2times2) blocks and have an idea of a pattern-search method before CAVLC decoding. If a pattern is matched in our look-up table, we can skip the standard CAVLD procedure and reconstruct a block directly. However, if there is not any pattern matched in the table, we have to reconstruct a block by CAVLD. Our lookup tables are built up according to our statistics and analysis. The experimental results show that the performance can be improved 10% compared with the standard CAVLD procedure
Keywords :
adaptive codes; adaptive decoding; code standards; correlation theory; pattern matching; table lookup; variable length codes; video coding; H.264-AVC CAVLC decoding; context-adaptive variable length coding; correlation theory; look-up table; pattern-search method; Application software; Automatic voltage control; Decoding; IEC standards; ISO standards; Pattern analysis; Pattern matching; Statistics; Table lookup; Video coding;
Conference_Titel :
Multimedia and Expo, 2006 IEEE International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
1-4244-0366-7
Electronic_ISBN :
1-4244-0367-7
DOI :
10.1109/ICME.2006.262720
