DocumentCode :
2959054
Title :
Low Power Entropy Coding Hardware Design for H.264/AVC Baseline Profile Encoder
Author :
Tsai, Chuan-Yung ; Chen, Tung-Chien ; Chen, Liang-Gee
Author_Institution :
Graduate Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei
fYear :
2006
fDate :
9-12 July 2006
Firstpage :
1941
Lastpage :
1944
Abstract :
Low power hardware design for entropy coding of H.264/AVC baseline profile encoder is urgent for the increasing mobile applications. However, previous works are poor in the power performance. In this paper, the first low power context-based adaptive variable length coding (CAVLC) scheme named the side information aided (SIA) symbol look ahead (SLA) one-pass CAVLC is proposed, with the non-zero and abs-one SIA flags. A reconfigurable architecture for the SLA module is also proposed to support the low power CAVLC scheme efficiently. The resultant hardware power is reduced by 69% to only 3.7 mW at 27 MHz and 1.8 V for CIF-sized video coding. The total logic gate count is 27 K gates
Keywords :
adaptive codes; code standards; entropy codes; mobile communication; variable length codes; video coding; H.264-AVC baseline profile encoder; SIA SLA one-pass CAVLC scheme; context-based adaptive variable length coding; entropy coding hardware design; mobile application; reconfigurable architecture; side information aided scheme; symbol look ahead scheme; Application specific integrated circuits; Automatic voltage control; Design engineering; Digital signal processing; Encoding; Energy consumption; Entropy coding; Hardware; Power engineering and energy; Video coding;
fLanguage :
English
Publisher :
ieee
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
Type :
conf
DOI :
10.1109/ICME.2006.262937
Filename :
4037006
Link To Document :
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