Image analysis – Editing – error checking – or correction
Patent
1994-04-06
1997-04-29
Mancuso, Joseph
Image analysis
Editing, error checking, or correction
358405, 382176, G06K 903
Patent
active
056257210
ABSTRACT:
A certificate, calculated on the text of a document to be reproduced, is included in the document in a form which is machine-readable. Upon optical character recognition scanning, or other digitizing reproduction, the certificate is also scanned and stored for comparison. A new certificate is calculated on the contents of the reproduced document and compared to the scanned certificate. If the two certificates are different, it is known that at least one error exists in the reproduced document. More than one certificate can be provided for a document in order to facilitate error location on the document and error correction therein.
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Japanese Patent Abstract No. A 63182771 based upon Japanese Patent Publication No. JP63182771 of Hideko.
Korth Henry F.
Lipton Richard J.
Lopresti Daniel P.
Sandberg Jonathan S.
Mancuso Joseph
Matsushita Information Technology Laboratory
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