Human identification using correlation metrics of iris images

Mehmet Celenk; Michael Brown; Yi Luo; Jason Kaufman; Limin Ma; Qiang Zhou

doi:10.1117/12.587411

17 January 2005 Human identification using correlation metrics of iris images

Mehmet Celenk, Michael Brown, Yi Luo, Jason Kaufman, Limin Ma, Qiang Zhou

Proceedings Volume 5682, Storage and Retrieval Methods and Applications for Multimedia 2005; (2005) https://doi.org/10.1117/12.587411
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

Biometric identification relies on information that is difficult to misplace or duplicate, making it a very useful tool when properly implemented. One biometric feature of considerable interest is the iris. Since most people rely heavily on their vision, they are protective of their eyes. This means there is less likelihood of change due to environmental factors. In addition, since the iris is created in a random morphogenetic process, there is a large amount of complexity suitable for use as a discriminator. There are currently several powerful methods available for using the human iris as a biometric for identification. One drawback inherent in the existing methods, however, is their computational complexity. Adopting stochastic models can provide an approach to reducing the extensive computing burden. To this end, we have presented two methods that rely on a wide-sense stationary approximation to the texture and gray scale information in the iris; one uses auto- and cross-correlations while the other employs second order statistics of co-occurrence matrices. Our experiments indicate that cross- and auto-correlations and co-occurrence matrix features are likely to be prominent iris discriminators for correct identification. Future tests will be conducted on larger sample sets to further verify the findings presented here. Two main methods for feature generation will also be compared and combined to produce an optimal classification strategy for an embedded hardware realization of the method. The addition of more features for discrimination is a likely necessity for classifying larger numbers of irises.

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Mehmet Celenk, Michael Brown, Yi Luo, Jason Kaufman, Limin Ma, and Qiang Zhou "Human identification using correlation metrics of iris images", Proc. SPIE 5682, Storage and Retrieval Methods and Applications for Multimedia 2005, (17 January 2005); https://doi.org/10.1117/12.587411

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KEYWORDS

Iris

Iris recognition

Biometrics

Matrices

Independent component analysis

Image classification

Optical correlators

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