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AssigneeInternational Business Machines Corporation
InventorsGreg Fitzpatrick, William J. Johnson, Robert S. Keller, Marvin L. Williams
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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.
A method of recognizing a color coded character, wherein said character comprises plural pixels which are of a first color, said first color pixels being predominate so as to allow humans to distinguish said character and a small amount of a second color associated with said character, said second color being non-predominate so as to be non-distracting to humans, but distinguishable by a color scanner, comprising the steps of:
An apparatus for recognizing a color coded character, wherein said character comprises plural pixels which are of a first color, said first color pixels being predominate so as to allow humans to distinguish said character and a small amount of a second color associated with said character, said second color being non-predominate so as to be non-distracting to humans, but distinguishable by a color scanner, comprising:
A method of permitting the recognition of a color coded character, wherein said character comprises plural pixels which are of a first color, said first color pixels being predominate so as to allow humans to distinguish said character and a small amount of a second color associated with said character, said second color being non-predominate so as to be non-distracting to humans, but distinguishable by a color scanner, comprising the steps of:
Dependencies are inferred from the claim text.