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Frontal face authentication using morphological elastic graph matching

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3 Author(s)
C. Kotropoulos ; Dept. of Inf., Aristotelian Univ. of Thessaloniki, Greece ; A. Tefas ; I. Pitas

A novel dynamic link architecture based on multiscale morphological dilation-erosion is proposed for frontal face authentication. Instead of a set of Gabor filters tuned to different orientations and scales, multiscale morphological operations are employed to yield a feature vector at each node of the reference grid. Linear projection algorithms for feature selection and automatic weighting of the nodes according to their discriminatory power succeed to increase the authentication capability of the method. The performance of the morphological dynamic link architecture is evaluated in terms of the receiver operating characteristic in the M2VTS face image database. The comparison with other frontal face authentication algorithms indicates that the morphological dynamic link architecture with discriminatory power coefficients is the best algorithm with respect to the equal error rate achieved

Published in:

IEEE Transactions on Image Processing  (Volume:9 ,  Issue: 4 )