TY - GEN
T1 - Off-angle iris correction using a biological model
AU - Thompson, Joseph
AU - Santos-Villalobos, Hector
AU - Karakaya, Mahmut
AU - Barstow, Del
AU - Bolme, David
AU - Boehnen, Chris
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84893764546&partnerID=8YFLogxK
U2 - 10.1109/BTAS.2013.6712694
DO - 10.1109/BTAS.2013.6712694
M3 - Conference contribution
AN - SCOPUS:84893764546
SN - 9781479905270
T3 - IEEE 6th International Conference on Biometrics: Theory, Applications and Systems, BTAS 2013
BT - IEEE 6th International Conference on Biometrics
PB - IEEE Computer Society
T2 - 6th IEEE International Conference on Biometrics: Theory, Applications and Systems, BTAS 2013
Y2 - 29 September 2013 through 2 October 2013
ER -