Optical character recognition method and apparatus using context

Details Optical character recognition method and apparatus using context Optical character recognition method and apparatus using context

1991-11-27

1994-01-11

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 28, 382 37, 382 40, 36441908, G06K 934, G06K 972, G06K 952, G06F 1538

Patent

active

052789187

ABSTRACT:
A system for recognition of characters on a medium. The system includes a scanner for scanning a medium such as a page of printed text and graphics and producing a bit-mapped representation of the page. The bit-mapped representation of the page is then stored in a memory means such as the memory of a computer system. A processor processes the bit-mapped image to produce an output comprising coded character representations of the text on the page. The present invention discloses parsing a page to allow for production of the output characters in a logical sequence, a combination of feature detection methods and template matching methods for recognition of characters and a number of methods for feature detection such as use of statistical data and polygon fitting.

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