Hybrid feature-based and template matching optical character rec

Details Hybrid feature-based and template matching optical character rec Hybrid feature-based and template matching optical character rec

1990-05-07

1991-12-31

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 9, 382 30, 382 34, G06K 900

Patent

active

050778056

ABSTRACT:
A feature-based character recognition identification and confidence level are determined for an unknown symbol. If the confidence level is within an intermediate range, the feature-based identification is confirmed by matching the unknown character with a reference template corresponding to the feature-based identification. If the confidence level is below the intermediate range, template matching character recognition is substituted in place of the feature-based identification. If the template matching recognition identifies more than one symbol, corresponding templates from a second set of templates having thicker character strokes are employed to resolve the ambiguity.

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