Title :
An Improved Soft-Input CAVLC Decoder for Mobile Communication Applications
Author :
Liu, Tsu-Ming ; Lee, Chen-Yi
Author_Institution :
Dept. of Electron. Eng., National Chiao-Tung Univ., HsinChu
Abstract :
In this paper, a new CAVLC decoding architecture with a soft-input design concept is proposed. The soft-decision information was introduced to localize the erroneous position at macroblock (MB) levels. Specifically, the minimal square difference between the received soft streams and decoded codewords was compared and selected. The corrupted MBs can be early detected and thereby concealed from neighboring pixels. Therefore, more than 1dB of PSNR gain can be achieved under the 2.7times10-3 of bit error rates
Keywords :
adaptive decoding; codecs; error correction; mobile communication; video coding; H.264/AVC; context adaptive variable length decoder; error detection; macroblock erroneous position; minimal square difference; mobile communication; soft-input CAVLC decoder; Automatic voltage control; Bit error rate; Decoding; Detection algorithms; Error correction; Error correction codes; Mobile communication; PSNR; Streaming media; Video compression; CAVLC; H.264/AVC; error detection; mobile communication; soft decoding;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342055
