Method and device for determining an error rate of biometric devices
First Claim
1. A method for determining an error rate (FAR, FRR) for a biometric device (BER) which, when a biometric characteristic (MB) of a person input by means of at least one biometric sensor (SEN) when prompted matches a characteristic (MB) of an authorized person stored as a characteristic set, releases an access and, when said biometric characteristic does not match, rejects an access, whereby, in order to determine the error rate, a current biometric characteristic (MB) of an authorized person is tested against a number (n) of foreign biometric characteristics (Mi) and the error rates defined by the frequency with which access is granted for an unauthorized person and the frequency with which access for an authorized person is rejected, characterized in that in the biometric device (BER) using a database (DAB) which contains a number (n) of foreign characteristic sets, a testing process is carried out to compare these foreign characteristic sets with the characteristic set of a stored current characteristic of the authorized person, and personal error rates (FAR, FRR) are determined for the authorized person on this basis.
2 Assignments
0 Petitions
Accused Products
Abstract
In order to determine the error rate of a biometric device, a number of foreign characteristic sets are stored in a database, which are compared during a testing process with the characteristic set of the authorized person, and personal error rates are determined for the authorized person based on this comparison.
6 Citations
13 Claims
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1. A method for determining an error rate (FAR, FRR) for a biometric device (BER) which, when a biometric characteristic (MB) of a person input by means of at least one biometric sensor (SEN) when prompted matches a characteristic (MB) of an authorized person stored as a characteristic set, releases an access and, when said biometric characteristic does not match, rejects an access, whereby, in order to determine the error rate, a current biometric characteristic (MB) of an authorized person is tested against a number (n) of foreign biometric characteristics (Mi) and the error rates defined by the frequency with which access is granted for an unauthorized person and the frequency with which access for an authorized person is rejected,
characterized in that in the biometric device (BER) using a database (DAB) which contains a number (n) of foreign characteristic sets, a testing process is carried out to compare these foreign characteristic sets with the characteristic set of a stored current characteristic of the authorized person, and personal error rates (FAR, FRR) are determined for the authorized person on this basis.
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8. A biometric device (BER), having at least one biometric sensor (SEN), which is set to release an access when a biometric characteristic of a person input by means of the sensor when prompted matches a characteristic (MB) of an authorized person stored as a characteristic set and to reject an access when there is no match,
characterized in that the device (BER) is designed, by accessing a database (DAB) which contains a number (n) of foreign characteristic sets, to carry out a testing process for comparing these foreign characteristic sets with the characteristic set of a stored current characteristic of the authorized person and to determine on this basis a personal error rate (FAR, FRR) for the authorized person.
Specification