Signature verification system

Details Signature verification system Signature verification system

1981-05-18

1984-02-21

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

235379, 235487, 283 58, G06K 900

Patent

active

044334362

ABSTRACT:
In a system for verifying a person's handwritten signature on a travelers check or the like by comparing the signature with a signature previously written by the person whose name is signed, both signatures are written on signature fields on the face of the check. Each field incorporates a similar arrangement of lines of pressure sensitive material that produces visible marks on the back of the check at points at which the lines of the signatures cross lines of the pressure sensitive material. When the patterns of marks thus produced are compared, dissimilarities between the patterns indicates that the two signatures were not made by the same person.

REFERENCES:
patent: 3282720 (1966-11-01), Oleksiw
patent: 3806704 (1974-04-01), Shinal
patent: 3950013 (1976-04-01), Tagliaferri
patent: 3955178 (1976-05-01), Warfel
patent: 4008457 (1977-02-01), Radcliffe
patent: 4009892 (1977-03-01), Nickerson
patent: 4035769 (1977-07-01), Sternberg et al.
patent: 4231593 (1980-11-01), Bell, Jr. et al.
patent: 4234868 (1980-11-01), Radice

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