Assist channel coding with character classifications

A system encodes a separate assist channel that carries only a small amount of additional information in a hardcopy document to compensate for failure of an OCR system to accurately reconstruct a scanned electronic version of the hardcopy document. The assist channel is encoded by mapping data from...

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Bibliographic Details
Main Authors NILES LESLIE T, GREENE DANIEL H, KUO ERIC H
Format Patent
LanguageEnglish
Published 01.03.2005
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
PHYSICS
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Summary:A system encodes a separate assist channel that carries only a small amount of additional information in a hardcopy document to compensate for failure of an OCR system to accurately reconstruct a scanned electronic version of the hardcopy document. The assist channel is encoded by mapping data from a primary channel of the document into a plurality of groups. The plurality of groups is used to classify the symbols of the primary channel by the likelihood that a character will occur and the likelihood that the symbols of the primary channel will be confused during OCR processing.
Bibliography:Application Number: US20000574268