METHOD OF AND APPARATUS FOR OPTICAL CHARACTER RECOGNITION BASED ON GEOMETRIC AND COLOR ATTRIBUTE HYPOTHESIS TESTING
Patent №
US 5,875,261
Granted
1999-02-23
Filed 1991
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION
Lab
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
07812249
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.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION
assignment · 59610763
Assignors
FITZPATRICK, GREG, JOHNSON, WILLIAM J., KELLER, ROBERT S., WILLIAMS, MARVIN L.
On an employer assignment, the assignors are typically the inventors.