TY - GEN
T1 - Most probable mode-based fast 4 × 4 intra-prediction in H.264/AVC
AU - La, Byeongdu
AU - Jeong, Jinwoo
AU - Choe, Yoonsik
PY - 2008
Y1 - 2008
N2 - The H.264/AVC uses the rate distortion optimization (RDO) method as a measure to select the optimal coding mode. However, the computational complexity for RDO calculation is increased due to the various coding modes. In this paper, we analyzes that the best mode decision for 4 × 4 intra-prediction can be affected according to the relation of most probable mode (MPM) and prediction mode. With this understanding, we propose an algorithm for fast 4 × 4 intraprediction mode selection based on the MPM in the H.264/AVC encoder. A defined rate distortion (RD) cost, including the minimum bit for signaling the prediction modes except the MPM, is used as a threshold for fast 4 × 4 intraprediction. Experimental results show that the proposed algorithm is capable of reducing the overall encoding time by 27-29% and the overall intra-prediction time by 35% compared to full search of the reference software, without loss of quality.
AB - The H.264/AVC uses the rate distortion optimization (RDO) method as a measure to select the optimal coding mode. However, the computational complexity for RDO calculation is increased due to the various coding modes. In this paper, we analyzes that the best mode decision for 4 × 4 intra-prediction can be affected according to the relation of most probable mode (MPM) and prediction mode. With this understanding, we propose an algorithm for fast 4 × 4 intraprediction mode selection based on the MPM in the H.264/AVC encoder. A defined rate distortion (RD) cost, including the minimum bit for signaling the prediction modes except the MPM, is used as a threshold for fast 4 × 4 intraprediction. Experimental results show that the proposed algorithm is capable of reducing the overall encoding time by 27-29% and the overall intra-prediction time by 35% compared to full search of the reference software, without loss of quality.
UR - http://www.scopus.com/inward/record.url?scp=67649637137&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649637137&partnerID=8YFLogxK
U2 - 10.1109/ICSPCS.2008.4813752
DO - 10.1109/ICSPCS.2008.4813752
M3 - Conference contribution
AN - SCOPUS:67649637137
SN - 9781424442423
T3 - 2nd International Conference on Signal Processing and Communication Systems, ICSPCS 2008 - Proceedings
BT - 2nd International Conference on Signal Processing and Communication Systems, ICSPCS 2008 - Proceedings
T2 - 2nd International Conference on Signal Processing and Communication Systems, ICSPCS 2008
Y2 - 15 December 2008 through 17 December 2008
ER -