Long Range Iris Recognition Systems
Long range iris acquisition system for stationary and mobile subjects
(S. Venugopalan, U. Prasad, K. Harun, K. Neblett, D. Toomey, J. Heyman and M. Savvides, "Long range iris acquisition system for stationary and mobile subjects," in International Joint Conference on Biometrics (IJCB), pp.1,8, 11-13 Oct. 2011)
Iridal pattern based biometric systems are being used nowadays in several applications requiring surveillance and access control. Several systems are being deployed at secure checkpoints across the globe, the primary reason being the uniqueness of these patterns across people. There is a ubiquity of literature proposing feature extraction and comparison schemes for this biometric modality and reporting very high recognition rates. A major concern in these systems is the acquisition of very well focused eye images, in which relevant iris features are discernible. The acquisition process often requires significant cooperation on the part of the user, whose eye is being imaged. One has to position oneself at a predefined location, at a fixed distance from the camera and the system should provide sufficient near infra-red (IR) illumination for acquisition. The need for such cooperation is due to the limited capture volume of the system, i.e., the volume of space in front of the system within which the acquired iris is of acceptable quality.
Thus, the CMU Biometrics Center has recently developed a state of the art long range iris (LRI) recognition capable of authenticating users from 6m to 12m away. It currently has the longest acquisition range in both academia and industry. The system was successfully demonstrated at demonstrated at Ft. Belvoir Army Night Vision Lab and several security conferences and has received much attention in the media.