RD-optimization for MPEG-2 to H.264 transcoding

被引：0
|
作者：
Fernandez-Escribano, Gerardo [1 ]
Kalva, Hari [2 ]
Cuenca, Pedro [1 ]
Orozco-Barbosa, Luis [1 ]
机构：
[1] Univ Castilla La Mancha, Inst Invest Informat Albacete, Campus Univ, Alicante 02071, Spain
[2] Florida Atlantic Univ, Dept Comp Sci & Engn, Boca Raton, FL USA
来源：
2006 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO - ICME 2006, VOLS 1-5, PROCEEDINGS | 2006年
关键词：
D O I：
10.1109/ICME.2006.262460
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
In this paper, we introduce and evaluate a low complexity macroblock partition mode decision algorithm for inter-frame prediction in MPEG-2 to H.264 transcoder. The proposed tools are used to compute an optimal MB coding mode decision with significantly reduced computational complexity. Specifically, we achieve the computational savings by using the following MB information coming from MPEG-2:. the MB coding modes, the coded block pattern (CBPC) in MPEG-2, and the mean and variance of the 16 44 sub blocks of the MPEG-2 residual MBs. We use data mining algorithms to develop a decision tree for H.264 coding mode decisions. The decision trees are built using RD optimized mode decisions and result in highly efficient mode decisions. The proposed transcoder is 35% faster than the RD optimized H.264 reference transcoder without a significant PSNR degradation. The proposed transcoder performs over 3 dB better than the SAE cost based H.264 transcoding.
引用
收藏
页码：309 / +
页数：2
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