Contactless autofeedback iris capture design

Automated iris recognition is one of the most reliable biometrics in terms of identification and verification performance. One of the major challenges for automated iris recognition is to capture a high-quality image of the iris since system performance is greatly affected by poor-quality imaging. This paper describes the design and implementation of a high-quality imaging device for iris acquisition, which consists of the following four parts: 1) capture unit; 2) illumination unit; 3) feedback unit; and 4) pitching outfit. Using the proposed device for iris acquisition, it is feasible to obtain real-time, high-quality iris images, given the fact that it is also user friendly. Recognition experiments in an iris database that contains 6550 images captured by the new device are also presented in this paper.