Character recognition apparatus using a keyword

Details Character recognition apparatus using a keyword Character recognition apparatus using a keyword

1996-05-23

1997-11-18

Couso, Jose L.

Image analysis

Pattern recognition

G06K 900

Patent

active

056895836

ABSTRACT:
A character recognition unit recognizes a document image to output character candidates; a character correction unit selects a corrected character string which is correct with respect to grammar and vocabulary, from a set of character candidates from the character recognition unit; a keyword extraction unit extracts keywords of a document to be recognized, from the corrected character string; and wherein the character correction unit selects the corrected character string by a use of BUNSETSU evaluation representing correctness with respect to grammar and vocabulary, and an evaluation of the BUNSETSU is increased when the BUNSETSU has the keyword outputted from the keyword extraction unit.

REFERENCES:
patent: 4674065 (1987-06-01), Lange et al.
patent: 4754489 (1988-06-01), Rokser
patent: 5133023 (1992-07-01), Bokser
patent: 5161245 (1992-11-01), Fenwick
"Post-Processing For Japanese Document Readers" by Fumihito Nishino et al., 1988, 166-169.
"A Review Of Segmentation And Contextual Analysis Techniques For Text Recognition" by D.G. Elliman, 1989, pp. 337-346.

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