Iris Matching by Local Extremum Points of Multiscale Taylor Expansion

Authors:
Algirdas Bastys;Justas Kranauskas;Rokas Masiulis
Affiliations:
Department of Computer Science II, Faculty of Mathematics and Informatics, Vilnius University, Lithuania;Department of Computer Science II, Faculty of Mathematics and Informatics, Vilnius University, Lithuania;Department of Computer Science II, Faculty of Mathematics and Informatics, Vilnius University, Lithuania
Venue:
ICB '09 Proceedings of the Third International Conference on Advances in Biometrics
Year:
2009

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Abstract

Random distribution of features in iris image texture allows to perform iris-based personal authentication with high confidence. We propose to use the most significant local extremum points of the first two Taylor expansion coefficients as descriptors of the iris texture. A measure of similarity that is robust to moderate inaccuracies in iris segmentation is presented for the proposed features. We provide experimental results of verification quality for four commonly used iris data-sets. Strong and weak aspects of the proposed approach are also discussed.