Patent ID: 6301376
Filing Date: 2001-10-09
Classification: G06K

Abstract:
A biometric enrollment and verification method comprising the steps of: obtaining biometric image signals for an image to be verified; obtaining a data structure for an enrolled image, said data structure having a plurality of yardsticks in a predetermined order, each said yardstick comprising a one dimensional pixel array having a predetermined number of either horizontal or vertically oriented, consecutive, co-linear pixels corresponding to a predetermined portion of a row or column of pixels within said enrollment image, each yardstick having a predetermined spatial relationship within said enrollment image relative to each of said other yardsticks, the maximum number of said yardsticks being substantially smaller than the maximum number extractable from the enrollment image and organized into a plurality of adjacent segments, comparing said yardsticks to an image to be verified by comparing segments of each yardstick to corresponding linear patterns in the image to be verified, wherein the result of the comparison of segments in a particular yardstick determines if said yardstick has found a match.