Publication Type
Conference Paper
Publication Date
Conference Name
Biometrics: Theory, Applications and Systems (BTAS)
Conference Location
Washington DC, District of Columbia, United States of America
Conference Sponsor
IEEE, ORNL, and DOE
Conference Date
-
Abstract
This work implements an eye model to simulate corneal refraction effects. Using this model, ray tracing is performed to calculate transforms to remove refractive effects in off-angle iris images when reprojected to a frontal view. The correction process is used as a preprocessing step for off-angle iris images for input to a commercial matcher. With this method, a match score distribution mean improvement of 11.65% for 30 degree images, 44.94% for 40 degree images, and 146.1% improvement for 50 degree images is observed versus match score distributions with unmodified images.
