Title :
An improved group-based optimizing of CAVLC decoder
Author :
Xiu-Li, Zhang ; Zhao-Si, Luo ; Rui-hua, Zhang
Author_Institution :
Electron. & Inf. Eng. Dept., Zhejiang Wanli Univ., Ningbo
Abstract :
Variable length code is a general lossless entropy coding method that is widely used in video compress standards. Based on analyzing R. Hashemian´s fixed-length group decoding methods and the structure and statistic principles of CAVLC code words, this paper puts forward a kind of decoding method by dividing the CAVLC code words into prefix and suffix. The method has been proved to save 62.3% memory and decrease the needed decoding speed more than R. Hashemian´s fixed-length group decoding methods.
Keywords :
adaptive codes; data compression; decoding; entropy codes; optimisation; statistical analysis; variable length codes; video coding; CAVLC code word; Hashemian´s fixed-length group decoding method; context-based adaptive variable length coding; group-based optimization; lossless entropy coding method; statistic principle; video compress standard; Automatic voltage control; Code standards; Decoding; Entropy coding; Optimization methods; Partitioning algorithms; Statistical analysis; Table lookup; Video compression; CAVLC decoding; H.264; group-based optimizing;
Conference_Titel :
Image Analysis and Signal Processing, 2009. IASP 2009. International Conference on
Conference_Location :
Taizhou
Print_ISBN :
978-1-4244-3987-4
DOI :
10.1109/IASP.2009.5054624
