Method for identifying and resolving erroneous characters output

Details Method for identifying and resolving erroneous characters output Method for identifying and resolving erroneous characters output

1994-07-11

1995-05-23

Boudreau, Leo H.

Image analysis

Editing, error checking, or correction

382224, 382226, 382229, G06K 903, G06K 972, G06K 962

Patent

active

054188644

ABSTRACT:
A post-processing method for an optical character recognition (OCR) method for combining different OCR engines to identify and resolve characters and attributes of the characters that are erroneously recognized by multiple optical character recognition engines. The characters can originate from many different types of character environments. OCR engine outputs are synchronized in order to detect matches and mismatches between said OCR engine outputs by using synchronization heuristics. The mismatches are resolved using resolution heuristics and neural networks. The resolution heuristics and neural networks are based on observing many different conventional OCR engines in different character environments to find what specific OCR engine correctly identifies a certain character having particular attributes. The results are encoded into the resolution heuristics and neural networks to create an optimal OCR post-processing solution.

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patent: 4958379 (1990-09-01), Yamaguchi et al.
patent: 5054093 (1991-10-01), Cooper et al.
patent: 5181256 (1993-01-01), Kamiya

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