| 摘要 |
PROBLEM TO BE SOLVED: To provide a character reader which can shorten the process time and improve the recognition rate. SOLUTION: When image data of a 1st character frame recognized by a character recognition part 15 are, for example, 'TAISHO', a select signal SEL for selecting a character set 16a for recognition of a 2nd character frame is outputted from a character set selection part 17 to a character dictionary 16A. Then the image data of the 2nd character frame are segmented by a character segmentation part 16 and supplied to the character recognition part 15, which performs character recognition according to the character set 16a for recognizing only numbers '0' and '1'. When the 1st character frame is 'SHOWA', the 2nd character frame has its characters recognized according to a character set 16c for recognizing numbers '0' to '6'. Thus, the recognition is performed by limiting character candidates according to the recognition result of a previous character frame, so the processing time is shortened and the recognition rate is improved.
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