Method for detecting forgery in a traced signature by measuring

Details Method for detecting forgery in a traced signature by measuring Method for detecting forgery in a traced signature by measuring

1995-07-27

1998-04-28

Boudreau, Leo

Image analysis

Applications

Personnel identification

382187, G06K 900

Patent

active

057455929

ABSTRACT:
Forgeries are detected by curve fitting the signature in question. The length of the curve fitted signature and the length of the signature in question are compared. If the signature in question is a traced or copied forgery, it will tend to have a significant amount of jitter which results in a significantly longer length than the curved fitted signature.

REFERENCES:
patent: 5251265 (1993-10-01), Dohle et al.
patent: 5537489 (1996-07-01), Sinden et al.
patent: 5559895 (1996-09-01), Lee et al.
patent: 5559897 (1996-09-01), Brown et al.
patent: 5623555 (1997-04-01), Nelson et al.
Pavlidis, "Curve Fitting with Conic Splines", ACM Transactions on Graphics, vol. 2, No. 1, Jan. 1983, pp. 1-31.
Achemlal et al, "Dynamic Signature Verification", Security and Protection in Information Systems, Dec. 1986.

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