Patent ID: 7606396

Claim:
A method of producing a score in a multimodal biometric system comprising: forming a set of enrolled biometric data records, each enrolled biometric data record comprising a record identifier, an enrolled biometric template of a first type and an enrolled biometric template of a second type; comparing a probe biometric template of said first type to enrolled biometric templates of said first type to produce a set of first scores; saving in a match set biometric data records wherein the first score for the data record passes a first biometric threshold; comparing a probe biometric template of said second type to biometric templates of said second type in said match set to produce a set of second scores; saving biometric data records in said match set wherein the second score for the data record passes a second biometric threshold; comparing the probe biometric template of the first type to saved biometric templates of the first type in the match set to produce another set of first scores; removing from the match set biometric data records wherein the another first score for the data record passes another first biometric threshold; comparing the probe biometric template of the second type to saved biometric templates of the second type in the match set to produce another set of second scores; and removing from the match set the biometric data records wherein the another second score for the data record passes another second biometric threshold, wherein: the another first biometric threshold is more restrictive than the first biometric threshold; and the another second biometric threshold is more restrictive than the second biometric threshold.