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

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.

VisionG06K 7/12G06F 18/254G06V 30/1918G06V 30/224

AI classification

Vision1.00
Natural language0.34
Machine learning0.28
AI hardware0.19
Knowledge representation0.01
Planning0.00
Speech0.00
Evolutionary computation0.00

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.

From the same owner

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