|
Download: |
Iris Recognition at a Distance: Blending Optics and BiometricsDavid Ackerman Human iris recognition is a robust means of biometric identification. Indeed, today's commercial close-range iris recognition systems operate successfully in security and critical infrastructure environments. This presentation focuses on designs of systems that operate at longer range. Long-range iris biometric capture expands the domain of iris biometrics by enabling unobtrusive identification and use in situations in which close proximity to the subject is undesirable or dangerous. Long-range iris recognition must cope with a diverse set of challenges in obtaining iris information from distant subjects that is sufficient for reliable identification. One class of challenges related to optics includes diffraction, illumination, stability and tracking. A second class of challenges relates to imaging uncertainties involved in opportunistic data capture. Optimal use of available long-range biometric information represents a third challenge. This presentation reviews work on long-range iris recognition at distances between 1 and 30m, describes the optical principles that underlie the challenges and discusses the possibilities for even longer distance iris recognitions systems of the future. |
 |
