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Efficient Technique of Motion Vector Re-estimation in Transcoding  

한두진 (연세대 공대 전기전자공학과)
박강서 (삼성전)
유희준 (삼성전)
김봉곤 (연세대 공대 전기전자공학)
박상희 (연세대 공대 전기전자공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers D / v.53, no.8, 2004 , pp. 602-605 More about this Journal
Abstract
A novel motion vector re-estimation technique for transcoding into lower spatial resolution is proposed. This technique is based on the fact that the block matching error is proportional to the complexity of the reference block with Taylor series expansion. It is shown that the motion vectors re-estimated by the proposed method are closer to optimal ones and offer better quality than those of previous techniques.
Keywords
Transcoding; Motion Vector Re-estimation; Taylor Series Expansion;
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