LIANG Yi-xiong, GONG Wei-guo, PAN Ying-jun, LI Wei-hong, LIU Jia-min, ZHANG Hong-mei . Singular value decomposition-based approach for face recognition[J]. Editorial Office of Optics and Precision Engineering, 2004,(5): 543-549
LIANG Yi-xiong, GONG Wei-guo, PAN Ying-jun, LI Wei-hong, LIU Jia-min, ZHANG Hong-mei . Singular value decomposition-based approach for face recognition[J]. Editorial Office of Optics and Precision Engineering, 2004,(5): 543-549DOI:
Singular value decomposition-based approach for face recognition
从而完成对未知人脸的识别.采用ORL(Olivetti Research Laboratory)人脸库对本文提出的人脸识别方法进行验证
获得了100.00%的识别率.实验结果表明
本方法优于现有的基于奇异值分解的人脸识别方法
且对表情、姿态变换等具有一定的鲁棒性.
Abstract
A method to extract algebraic features of a face image based on the Fourier transform and Singular Value Decomposition(SVD)is introduced
then the method with the algebraic feature is proposed to recognize faces. First
face images are processed by a 2D Fourier transform that has some effective properties such as a linear transform
and is invariant against spatial translation. The amplitudes of the transform coefficients are used to represent the image in the frequency domain. Second
the amplitude representation of the face image is projected onto the two compressed orthogonal matrixes
which come from the SVD of the standard face image obtained by averaging all training samples and then the projecting coefficients are used as the algebraic feature of the face image. The robustness of this feature is proved and used for face recognition. In the matching stage
the traditional Nearest Neighbor Classifier(NNC)is improved to recognize the unknown faces by using Euclidean distance as the similarity measurement. Finally
the standard face database from Olivetti Research Laboratory(ORL)is selected to evaluate the recognition accuracy of the proposed face recognition algorithm. This database includes face images with different expressions
small occlusions
different illumination conditions and different poses
etc. The recognition accuracy is up to 100.00% by selecting appropriate values of the parameters. The effectiveness of the proposed face recognition algorithm and its insensitivity to the facial expression
illumination and posture are shown in terms of both the absolute performance indices and the comparative performance against some popular face recognition schemes such as Singular Value decomposition-based method.
关键词
Keywords
references
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