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Registration Error Compensation for Face Recognition Using Eigenface  

Moon Ji-Hye (이화여자대학교 정보통신학과 영상처리연구실)
Lee Byung-Uk (이화여자대학교 정보통신학과 영상처리연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.5C, 2005 , pp. 364-370 More about this Journal
Abstract
The first step of face recognition is to align an input face picture with database images. We propose a new algorithm of removing registration error in eigenspace. Our algorithm can correct for translation, rotation and scale changes. Linear matrix modeling of registration error enables us to compensate for subpixel errors in eigenspace. After calculating derivative of a weighting vector in eigenspace we can obtain the amount of translation or rotation without time consuming search. We verify that the correction enhances the recognition rate dramatically.
Keywords
Eigenface; Subpixel; Database;
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