Effects of Iris Surface Curvature on Iris Recognition

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

OSTI ID:1096316

Thompson, Joseph T ^[1]; Flynn, Patrick J ^[1]; Bowyer, Kevin W ^[2]; Santos-Villalobos, Hector J ^[1]

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1. ORNL
2. University of Notre Dame, IN

To focus on objects at various distances, the lens of the eye must change shape to adjust its refractive power. This change in lens shape causes a change in the shape of the iris surface which can be measured by examining the curvature of the iris. This work isolates the variable of iris curvature in the recognition process and shows that differences in iris curvature degrade matching ability. To our knowledge, no other work has examined the effects of varying iris curvature on matching ability. To examine this degradation, we conduct a matching experiment across pairs of images with varying degrees of iris curvature differences. The results show a statistically signi cant degradation in matching ability. Finally, the real world impact of these ndings is discussed

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program; Work for Others (WFO)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1096316
• Resource Relation: Conference: Biometrics Theory, Applications and Systems (BTAS), Washington DC, DC, USA, 20130929, 20130929
• Country of Publication: United States
• Language: English