Hand-written character recognition apparatus
First Claim
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1. A hand-written character recognition apparatus comprising:
- input means for generating hand-written stroke data;
means for deriving and storing characteristics of the hand-written stroke data;
buffer means for storing rectangular outline and direction data of the hand-written stroke data;
character dictionary means for storing characteristics of strokes of characters and directional relations of rectangular outline data of characters, including rectangular outline and direction data for partial structures of characters; and
character recognition means, including partial structure determining means which determines partial structures of the hand-written stroke data, for determining characters of the hand-written stroke data by comparing characteristics and the directional relations of the rectangular outline data stored in the character dictionary means with respect to the direction data of partial-structures of the hand-written strokes stored in the buffer means.
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Abstract
A hand-written character recognition apparatus which checks the relation between the rectangular outline directions of two partial structures of one character.
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Citations
4 Claims
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1. A hand-written character recognition apparatus comprising:
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input means for generating hand-written stroke data; means for deriving and storing characteristics of the hand-written stroke data; buffer means for storing rectangular outline and direction data of the hand-written stroke data; character dictionary means for storing characteristics of strokes of characters and directional relations of rectangular outline data of characters, including rectangular outline and direction data for partial structures of characters; and character recognition means, including partial structure determining means which determines partial structures of the hand-written stroke data, for determining characters of the hand-written stroke data by comparing characteristics and the directional relations of the rectangular outline data stored in the character dictionary means with respect to the direction data of partial-structures of the hand-written strokes stored in the buffer means.
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2. A hand-written character recognition apparatus comprising:
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input means for generating hand-written stroke data; means for deriving and storing characteristics of the hand-written stroke data; buffer means for storing rectangular outline and direction data of the hand-written stroke data, wherein the rectangular outline data stored in the buffer means includes coordinate data for the vertices and center points of the sides of a hypothetical rectangle surrounding each partial structure represented by the cumulative hand written stroke data; character dictionary means for storing characteristics of strokes of characters and directional relations of rectangular outline data of characters, including rectangular outline and direction data for partial structures of characters; and character recognition means, including partial structure determining means which determines partial structures of the hand-written stroke data, for determining characters of the hand-written stroke data by comparing characteristics and the directional relations of the rectangular outline data stored in the character dictionary means with respect to the direction data of partial-structures of the hand-written strokes stored in the buffer means. - View Dependent Claims (3)
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4. A hand-written character recognition method comprising the steps of:
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generating hand-written stroke data; deriving and storing characteristics of the hand-written stroke data; storing rectangular outline and direction data of the hand-written stroke data; storing characteristics of strokes of characters and directional relations of rectangular outline data of characters, including rectangular outline and direction data for partial structures of characters; and determining characters of the hand-written stroke data, including determining partial structures of the hand-written stroke data, by comparing characteristics and the directional relations of the stored rectangular outline data with respect to the stored direction data of partial-structures of the hand-written strokes.
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Specification