Alphabetic character work upper/lower case print convention...

Details Alphabetic character work upper/lower case print convention... Alphabetic character work upper/lower case print convention...

G - Physics

06

K

354/59

G06K 9/00 (2006.01) G06K 9/72 (2006.01)

Patent

CA 1066418

ALPHABETIC CHARACTER WORD UPPER/LOWER CASE PRINT CONVENTION APPARATUS AND METHOD ABSTRACT The apparatus and method disclosed herein determines whether an alphabetic character field output from an optical character reader (OCR) is related to the OCR scan of an upper case or a lower case inscription on the document scanned. Each word output by the OCR corresponds to a field (i.e., word) of characters on the scanned docu- ment. The signals representative of the upper and lower case alpha- betic characters and rejects including conflicts outputted from the OCR are applied to a character occurrence probability storage apparatus having precomputed empirical probabilities therein that: a given character recognition is the result of the scan of an upper or lower case character as the case may be. The storage apparatus includes probability values for character conflicts and rejects. As the series of signals from the OCR output are applied to the character occurrence probability storage apparatus, a running sum of the respective pro- babilities for the upper case and lower case print conventions is developed so that, following the input of the final character, reject or conflict within a word to the aforesaid apparatus, an appropriate upper or lower case determination can be made for all of the char- acters within the word. This determination corresponds with the print convention of the word inscribed on the scanned document. A correspond- ing upper or lower case flag is correspondingly generated with the print convention determination for further text processing.

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