Off-Angle Iris Correction using a Biological Model

Conference · Tue Jan 01 00:00:00 EST 2013

OSTI ID:1096317

Thompson, Joseph T ^[1]; Santos-Villalobos, Hector J ^[1]; Karakaya, Mahmut ^[1]; Barstow, Del R ^[1]; Bolme, David S ^[1]; Boehnen, Chris Bensing ^[1]

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1. ORNL

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 unmodi ed images.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1096317
• Resource Relation: Conference: Biometrics Theory, Applications and Systems (BTAS), Washington DC, DC, USA, 20130929, 20130929
• Country of Publication: United States
• Language: English