DocumentCode :
2603588
Title :
Analysis of template aging in iris biometrics
Author :
Fenker, S.P. ; Bowyer, K.W.
Author_Institution :
Dept. of Comput. Sci. & Eng., Univ. of Notre Dame, Notre Dame, IN, USA
fYear :
2012
fDate :
16-21 June 2012
Firstpage :
45
Lastpage :
51
Abstract :
It has been widely believed that biometric template aging does not occur for iris biometrics. We compare the match score distribution for short time-lapse iris image pairs, with a mean of approximately one month between the enrollment image and the verification image, to the match score distributions for image pairs with one, two and three years of time lapse. We find clear and consistent evidence of a template aging effect that is noticeable at one year and that increases with increasing time lapse. For a state-of-the-art iris matcher, and three years of time lapse, at a decision threshold corresponding to a one in two million false match rate, we observe an 153% increase in the false non-match rate, with a bootstrap estimated 95% confidence interval of 85% to 307%.
Keywords :
image matching; iris recognition; biometric template aging analysis; enrollment image; iris biometrics; iris image pairs; iris matcher; match score distribution; verification image; Aging; Humans; Iris recognition; Lighting; Magnetic resonance; Springs;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Vision and Pattern Recognition Workshops (CVPRW), 2012 IEEE Computer Society Conference on
Conference_Location :
Providence, RI
ISSN :
2160-7508
Print_ISBN :
978-1-4673-1611-8
Electronic_ISBN :
2160-7508
Type :
conf
DOI :
10.1109/CVPRW.2012.6239214
Filename :
6239214
Link To Document :
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