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Fusing iris and conjunctival vasculature: Ocular biometrics in the visible spectrum

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6 Author(s)
Gottemukkula, V. ; Dept. of Comput. Sci. & Electr. Eng., Univ. of Missouri - Kansas City, Kansas City, MO, USA ; Saripalle, S.K. ; Tankasala, S.P. ; Derakhshani, R.
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Ocular biometrics refers to the imaging and use of characteristic features of the eyes for personal identification. Traditionally, the iris has been viewed as a powerful ocular biometric cue. However, the iris is typically imaged in the near infrared (NIR) spectrum. RGB images of the iris, acquired in the visible spectrum, offer limited biometric information for dark-colored irides. In this work, we explore the possibility of performing ocular biometric recognition in the visible spectrum by utilizing the iris in conjunction with the vasculature observed in the white of the eye. We design a weighted fusion scheme to combine the information originating from these two modalities. Experiments on a dataset of 50 subjects indicate that such a fusion scheme improves the equal error rate by a margin of 4.5% over an iris-only approach.

Published in:

Homeland Security (HST), 2012 IEEE Conference on Technologies for

Date of Conference:

13-15 Nov. 2012