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Japanese Patent JP3546553

B2

PROBLEM TO BE SOLVED: To precisely separate a character part or the like by performing the extraction and recognition of a linked black picture element group, providing a character code as its recognized candidate and using the shape and position of the already character-recognized black picture element group and the information on connection between words held in a grammer dictionary or the like.
SOLUTION: A rectangle circumscribed to the continuous black picture element group in an image is found by a circumscribed rectangle generating means 101 and the degree of certainty is provided by a character recognizing means 102-1. The estimation and merge of separate characters are performed by a separate character candidate extracting means 104 and a separate character merging means 105, and the rectangle merged as separate characters is fixed as a character rectangle. Next, a character string is estimated as the set of character rectangles by a character string estimating means 107. Afterwards, a character block is estimated by a character block estimating means 108, and a non-character rectangle is estimated as the set of rectangles by a non-character rectangle estimating means 106. When there is any unfixed rectangle, that rectangle is estimated again as an object but when there is no rectangle, the estimated result of character structure is outputted by a character P block order estimating means 111.

Kiyoshi Tashiro

JP21280695A

July 28, 2004

July 28, 1995

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Fuji Xerox Co., Ltd

G06K9/34; G06K9/72; G06K9/20; (IPC1-7): G06K9/20; G06K9/34; G06K9/72

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