Image analysis – Applications – Personnel identification
Patent
1998-03-24
1999-06-01
Boudreau, Leo H.
Image analysis
Applications
Personnel identification
382174, 382204, G06K 952, G06K 920
Patent
active
059095008
ABSTRACT:
The present invention provides a method for reducing the variations attendant to free-form execution of a signature by providing a delimiting area in which a signature string, and/or portions of a signature string, is/are to be constrainedly transcribed. Also disclosed is a method of signature verification based on analysis of the environs attendant to the signature-string. Such method comprises analyzing the delimited areas attendant to one or more exemplar signatures; determining highly correlative relationships between two or more delimited areas within the signature strings of the exemplar library thereby identifying archetypical delimited areas; causing an unauthenticated signature to be signed in a delimiting manner corresponding to the manner in which the exemplar signatures were delimitedly signed; searching for delimited areas in the unauthenticated signature corresponding to the archetypical delimited areas; determining whether such corresponding archetypical delimited areas of the unauthenticated signature display the same inter-relationships as the archetypical delimited areas with respect to the exemplar signatures; and rejecting as non-authenticate unauthenticated signatures having little correspondence to the exemplar signatures with respect to such highly correlative delimited areas and the relationship there-between.
REFERENCES:
patent: 4634148 (1987-01-01), Greene
patent: 5042073 (1991-08-01), Collot et al.
patent: 5563959 (1996-10-01), Gallo et al.
Boudreau Leo H.
Werner Brian P.
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