Mode decision for high-quality H.264/AVC video downscaling transcoding

Authors:
Chia-Tien Lin;Wan-Chun Teng;Yinyi Lin
Affiliations:
Department of Communication Engineering, National Central Univeristy, Taiwan;Department of Communication Engineering, National Central Univeristy, Taiwan;Department of Communication Engineering, National Central Univeristy, Taiwan
Venue:
PCM'10 Proceedings of the Advances in multimedia information processing, and 11th Pacific Rim conference on Multimedia: Part II
Year:
2010

Citing 5
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Abstract

This paper proposes an efficient inter/intra mode decision algorithm for H.264/AVC video downscaling transcoding to reduce computation cost while maintaining high coding performance. The experimental result shows that the proposed algorithm achieves a reduction of 42% total re-encoding time, with negligible performance distortion, when compared with complex cascaded pixel domain transcoding (CCPDT). The proposed algorithm is also compared with the simple mapping method (SMM), and the result demonstrates that the improvement in coding performance is remarkable.