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Chin. Opt. Lett.
 Home  List of Issues    Issue 11 , Vol. 10 , 2012    10.3788/COL201210.111501

Reliable iris localization using integral projection function and 2D-shape properties
Farmanullah Jan, Imran Usman, Shahrukh Agha
[Department of Electrical Engineering, COMSATS Institute of Information Technology], Park Road, Chak Shahzad, 44000, Islamabad, Pakistan

Chin. Opt. Lett., 2012, 10(11): pp.111501

Topic:Machine vision
Keywords(OCIS Code): 150.0150  100.0100  110.0110  

Iris recognition technology recognizes a human based on his/her iris pattern. However, the accuracy of the iris recognition technology depends on accurate iris localization. Localizing a pupil region in the presence of other low-intensity regions, such as hairs, eyebrows, and eyelashes, is a challenging task. This study proposes an iris localization technique that includes a localizing pupillary boundary in a sub-image by using an integral projection function and two-dimensional shape properties (e.g., area, geometry, and circularity). The limbic boundary is localized using gradients and an error distance transform, and the boundary is regularized with active contours. Experimental results obtained from public databases show the superiority of the proposed technique over contemporary methods.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Posted online:2012/9/28

Get Citation: Farmanullah Jan, Imran Usman, Shahrukh Agha, "Reliable iris localization using integral projection function and 2D-shape properties," Chin. Opt. Lett. 10(11), 111501(2012)

Note: This work was supported by in-house PhD Program of COMSATS Institute of Information Technology, Islamabad Campus Pakistan. We would also like to thank the Malaysia Multimedia University and Chinese Academy of Sciences for providing us with free access to their iris databases.


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