Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28176
Title: Low-complexity intra prediction algorithm for video down-sizing transcoder
Authors: Lu, ZY
Jia, KB
Siu, WC 
Issue Date: 2011
Source: 2011 IEEE Visual Communications and Image Processing, VCIP 2011, 2011, 6115934 How to cite?
Abstract: This paper presents an efficient intra mode decision scheme for down-sizing video transcoding in H.264 using support vector machines (SVMs). In order to reduce the high computational complexity of intra prediction in the H.264 re-encoder, the proposed scheme uses SVMs to exploit the correlation between coding information extracted from the input high-resolution bit-stream and the coding modes of macro-blocks in down-sized video, and turns the intra mode decision problem into pattern classification problem to achieve low complexity video transcoding framework. After the SVMs classifier, improbable modes are eliminated and only a small number of candidate modes are carried out using the RDO operations. Hence, remarkable computing time of up to 65.3% can be saved with trivial bit gain and quality loss.
Description: 2011 IEEE Visual Communications and Image Processing, VCIP 2011, Tainan, 6-9 November 2011
URI: http://hdl.handle.net/10397/28176
ISBN: 9781457713200
DOI: 10.1109/VCIP.2011.6115934
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