Patent ID: 7747043

Claim:
A biometrics authentication system, which detects biometrics characteristic data from a living body and verifies the detected biometrics characteristic data against registered characteristic data prior obtained from said living body to authenticate an individual, comprising: a detection unit which detects biometrics information from said living body; a storage unit which stores said registered biometrics characteristic data; and a processing unit which extracts said biometrics characteristic data from the biometrics information detected by said detection unit and registers said biometrics characteristic data in said storage unit, and which extracts said biometrics characteristic data from the biometrics information detected by said detection unit and verifies said extracted biometrics characteristic data against said biometrics characteristic data registered in said storage unit to authenticate the individual, wherein said processing unit obtains the biometrics information for the same living body from said detection unit a plurality of times, judges the degree of mutual similarity of biometrics characteristic data sets extracted from said biometrics information obtained a plurality of times, and registers a plurality of biometrics characteristic data sets with a high degree of similarity in said storage unit, and wherein said processing unit registers the biometrics characteristic data acquired the first time in said storage unit, as a reference data, and, acquires the biometrics characteristic data a second time, calculates the degrees of similarity with biometrics characteristic data sets between the first time and the second time, and when the degree of similarity of the biometrics characteristic data for registration is equal to or greater than a threshold value, registers said biometrics characteristic data for the second time in said storage unit, when the degree of similarity of the biometrics characteristic data for registration is not equal to or greater than a threshold value, acquires the biometrics characteristic data a third time, performs repeatedly said calculation and said registration until a prescribed number of biometric characteristic data sets with a high degree of the similarity to the first time biometric characteristic data are obtained.