TY - GEN
T1 - Area-efficient H.264 VLC decoder using sub-tree classification
AU - Lo, Chia Cheng
AU - Hsu, Chia Wei
AU - Shieh, Ming Der
PY - 2010/12/28
Y1 - 2010/12/28
N2 - Most video compression standards, such as MPEG-2 and H.264/AVC, use variable length coding (VLC) to remove statistical redundancy. Since the codewords have variable length, how to represent the codeword table to reduce storage size is an important issue. A 2-D to 1-D tree translation scheme is proposed to minimize the number of stored bits. However, the throughput is limited by the tree search decoding flow. The VLC tree is then decomposed using sub-tree (ST) classification. The ST classification method not only reduces the amount of storage required for codewords but also improves the throughput. The gate count of the proposed H.264/AVC context-based variable length decoder (CAVLD) design is 6.23 K when synthesized at 200 MHz.
AB - Most video compression standards, such as MPEG-2 and H.264/AVC, use variable length coding (VLC) to remove statistical redundancy. Since the codewords have variable length, how to represent the codeword table to reduce storage size is an important issue. A 2-D to 1-D tree translation scheme is proposed to minimize the number of stored bits. However, the throughput is limited by the tree search decoding flow. The VLC tree is then decomposed using sub-tree (ST) classification. The ST classification method not only reduces the amount of storage required for codewords but also improves the throughput. The gate count of the proposed H.264/AVC context-based variable length decoder (CAVLD) design is 6.23 K when synthesized at 200 MHz.
UR - http://www.scopus.com/inward/record.url?scp=78650460275&partnerID=8YFLogxK
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U2 - 10.1109/IIHMSP.2010.78
DO - 10.1109/IIHMSP.2010.78
M3 - Conference contribution
AN - SCOPUS:78650460275
SN - 9780769542225
T3 - Proceedings - 2010 6th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2010
SP - 284
EP - 287
BT - Proceedings - 2010 6th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2010
T2 - 6th International Conference on Intelligent Information Hiding and Multimedia Signal Processing, IIHMSP 2010
Y2 - 15 October 2010 through 17 October 2010
ER -