Image analysis – Color image processing – Pattern recognition or classification using color
Patent
1991-12-20
1999-02-23
Johns, Andrew W.
Image analysis
Color image processing
Pattern recognition or classification using color
382227, G06K 962
Patent
active
058752617
ABSTRACT:
Method of, and apparatus for, optical character recognition of predominate and non-predominate color coded characters based on hypothesis testing utilizing both geometric optical character recognition and color coded optical character recognition techniques. In this hypothesis testing technique, geometric OCR is used to generate a null hypothesis that a target character has been recognized, and an alternative hypothesis that the target character has not been recognized. Color coded OCR is used to select either the null hypothesis or the alternative hypothesis. Alternatively, the roles of geometric OCR and color coded OCR may be reversed such that color coded OCR is used for hypothesis generation, and geometric OCR is used for hypothesis selection.
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Fitzpatrick Greg
Johnson William J.
Keller Robert S.
Williams Marvin L.
Duffield Edward H.
International Business Machines - Corporation
Johns Andrew W.
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