A QUALITY EVALUATION METHOD OF IRIS IMAGES
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During the image acquisition process of an automatic iris recognition system, unqualified iris images are probably rejected (Failure to Enroll). Three performance metrics, Image Definition, Inside and Outside Eccentricity, and Iris Visibility are introduced, which makes possible a real-time evaluation to the acquired images. The experiment results show that this evaluation system can reflect the real quality of images and thus significantly improve the overall performance of the iris recognition system.