Patent ID: 7913090
Filing Date: 2011-03-22
Classification: G06K

Abstract:
1. An authentication system for comparing a correlation value between inspected characteristic data of biometric data acquired from a biometric subject being inspected and comparative data linked with the predetermined biometric subject and a predetermined threshold value linked with said predetermined biometric subject to authenticate whether or not said biometric subject being inspected is said predetermined biometric subject, comprising: a processor; and a memory device storing instructions which when executed by the processor, cause the processor to: store a threshold value defined so that a value obtained by dividing an absolute value of a difference between a first mean value of a plurality of first correlation values generated by detecting correlation with said comparative data for a plurality of first characteristic data previously acquired from said predetermined biometric subject and said threshold value by a standard deviation of said plurality of first correlation values and values obtained by dividing an absolute value of a difference between a second mean value of a plurality of second correlation values generated by detecting correlation with said comparative data for a plurality of second characteristic data previously acquired from a biometric subject other than said predetermined biometric subject and said threshold value by said plurality of second correlation values coincide; and compare said inspected characteristic data and the threshold value to authenticate whether or not said biometric subject being inspected is said predetermined biometric subject.