The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 31, 2001
Filed:
Mar. 12, 1998
Hamadi Jamali, Redwood City, CA (US);
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention is a computer-implemented method for calculating word accuracy. Word grouping accuracy values (,) are calculated (,) by using the character accuracy values (,) calculated by an OCR program present in a computer system. The present invention preferably uses these character accuracy values (,) to create a word grouping accuracy value (,). Various methods are employed to calculate the word accuracy (,), including binarizing the character accuracy values (,), modified averaging of the character accuracy values (,), and creating fuzzy visual displays of word grouping accuracy values (,). The calculated word grouping accuracy values (,) are then adjusted based upon known OCR strengths and weaknesses, and based upon comparisons to stored word lists and the application of language rules. In a system with multiple character recognition techniques, the system can compare the accuracy values (,) of different versions of the word groupings to find the most accurate version. Then, the most accurate version of the word groupings is kept.