Title
Intersubject differences in false nonmatch rates for a fingerprint-based authentication system
Abstract
The intersubject dependencies of false nonmatch rates were investigated for a minutiae-based biometric authentication process using single enrollment and verification measurements. A large number of genuine comparison scores were subjected to statistical inference tests that indicated that the number of false nonmatches depends on the subject and finger under test. This result was also observed if subjects associated with failures to enroll were excluded from the test set. The majority of the population (about 90%) showed a false nonmatch rate that was considerably smaller than the average false nonmatch rate of the complete population. The remaining 10% could be characterized as "goats" due to their relatively high probability for a false nonmatch. The image quality reported by the template extraction module only weakly correlated with the genuine comparison scores. When multiple verification attempts were investigated, only a limited benefit was observed for "goats," since the conditional probability for a false nonmatch given earlier nonsuccessful attempts increased with the number of attempts. These observations suggest that (1) there is a need for improved identification of "goats" during enrollment (e.g., using dedicated signal-driven analysis and classification methods and/or the use of multiple enrollment images) and (2) there should be alternative means for identity verification in the biometric system under test in case of two subsequent false nonmatches.
Year
DOI
Venue
2009
10.1155/2009/896383
EURASIP J. Adv. Sig. Proc.
Keywords
DocType
Volume
average false nonmatch rate,multiple enrollment image,identity verification,false nonmatch rate,large number,false nonmatches,fingerprint-based authentication system,intersubject difference,genuine comparison score,false nonmatch,multiple verification attempt,subsequent false nonmatches
Journal
2009,
Issue
ISSN
Citations 
1
1687-6180
4
PageRank 
References 
Authors
0.44
5
3
Name
Order
Citations
PageRank
Jeroen Breebaart129328.86
Ton Akkermans2151.53
Emile Kelkboom3363.55