Patent attributes
A method for authenticating an individual by use of fingerprint data that involves two different broad steps. The first step is to obtain a biometrics fingerprint signature template (“BFST”) for an individual in an enrollment process by selecting a plurality of bands for the BFST and obtaining a plurality of tracks corresponding to each of the plurality of bands by use of an enrollment frame of a selected finger of the individual, wherein the plurality of bands are spatially referenced to the enrollment frame and can be spatially referenced to a reference barrier. The second step is to authenticate (or not) a candidate finger against one or more BFST in an authentication process in which a swipe direction and an access code for the individual are selected, a plurality of candidate tracks are obtained from the candidate finger through use of the reference barrier in an authentication unit so that each of the plurality of candidate tracks is spatially referenced so as to be within a corresponding one of the plurality of bands, calculating a similarity index for each of the plurality of candidate tracks and each of the plurality of tracks for the band to which the candidate track corresponds by use of a Fast Fourier-transform fingerprint algorithm, and multiplying each maximum similarity index obtained for each of the plurality of candidate tracks to obtain a match index which indicates a match if it exceeds a preselected threshold.
