Biometric system
AssigneeNCR Corporation
InventorMichael Coutts
Life of this patent
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Abstract
A biometric system for obtaining a biometric enrolment measurement is described. The system comprises a biometric capture unit for capturing biometric data from a user and a control means for producing a biometric match template there from. The control means also analyses the template to determine if the enrolment measurement may be susceptible to allowing false acceptances when in use. This is achieved by using the match template to verify against a number test templates, which have been created from earlier acquired biometric measurements, of the same class, obtained from other sources. If one or more false accepts are detected the enrolment measurement may be rejected.
Claims31
A biometric system comprising:
- a biometric capture unit for capturing biometric data from a user;
- and
- control means for producing a biometric template there from and for analyzing the template to determine if the enrolment measurement may be susceptible to allowing false acceptances when in use, by using the template as a test template against which templates created from biometric measurements obtained earlier from other sources are compared, and a decision as to whether or not to accept the enrolment measurement is made dependent on the number of false accepts detected.
A method of obtaining a biometric enrolment measurement from a user, the method comprising:
- capturing a biometric measurement from a user;
- producing a biometric template there from;
- and
- analyzing said template to determine if the enrolment measurement may be susceptible to allowing false acceptances when in use, by using the template as a test template against which test templates, created from measurements obtained earlier from other sources are compared, and a decision as to whether or not to accept the enrolment measurement is made dependent on the number of false accepts detected.
A computer program for analyzing the acceptability of a biometric enrolment measurement, arranged to produce a biometric template from the enrolment measurement and to analyze the template to determine if the enrolment measurement may be susceptible to allowing false acceptances when in use, by using the template as a match template against which earlier test templates, created from biometric measurements obtained from other sources, are compared, and a decision as to whether or not to accept the enrolment measurement is made dependent on the number of false accepts.
Dependencies are inferred from the claim text.