Image analysis – Pattern recognition – On-line recognition of handwritten characters
Patent
1994-12-05
1996-01-02
Boudreau, Leo H.
Image analysis
Pattern recognition
On-line recognition of handwritten characters
382179, 382242, 382197, 382286, G06K 900
Patent
active
054816254
ABSTRACT:
A handwritten character recognition device including: input unit for inputting handwriting thereon; stroke extracting unit for analyzing the handwriting in an X-axis and Y-axis direction, and extracting an X-axis and Y-axis direction input stroke; symbolizing unit for converting the X-axis direction input stroke into an X-axis direction symbol string and the Y-axis direction input stroke into a Y-axis direction symbol string; first storage unit for storing X-axis direction basic symbol strings corresponding to X-axis direction basic symbol strokes of reference characters, and Y-axis direction basic symbol strings corresponding to Y-axis direction basic symbol strokes of the reference characters; second storage unit for storing correlation coefficients between each of the symbols; degree-of-match calculating unit for calculating, by referring to the first storage unit and the second storage unit, X-axis correlation coefficients between the symbols forming the X-axis direction symbol string and the symbols forming the X-axis direction basic symbol string and Y-axis correlation coefficients between the symbols forming the Y-axis direction symbol string and the symbols forming the Y-axis direction basic symbol stroke, and for producing X-axis degrees-of-match on the basis of the X-axis correlation coefficients and Y-axis degrees-of-match on the basis of the Y-axis correlation coefficients; and recognizing unit for recognizing the character inputted to the input unit on the basis of the X-axis degree-of-match and Y-axis degree-of-match.
REFERENCES:
patent: 4685142 (1987-08-01), Ooi et al.
patent: 4813078 (1989-03-01), Fujiwara et al.
patent: 5033101 (1991-07-01), Sood
Anderson David B.
Boudreau Leo H.
Pioneer Electronic Corporation
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