发明名称 |
CHARACTER RECOGNITION APPARATUS |
摘要 |
Character recognition apparatus wherein projection pattern signals obtained by projecting the density distribution of a printed or typed character on two axes orthogonal to each other are transformed into frequency spectrum patterns by a Fourier transform unit, the transformed signals are compared with a number of standard frequency spectrum pattern signals which correspond to a number of standard characters and which are obtained by a method similar to the foregoing one, and the standard character corresponding to the frequency spectrum pattern of the highest degree of similarity is outputted as a recognized character.
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申请公布号 |
US3846752(A) |
申请公布日期 |
1974.11.05 |
申请号 |
US19720294179 |
申请日期 |
1972.10.02 |
申请人 |
HITACHI LTD,JA |
发明人 |
NAKANO Y,JA;NAKATA K,JA;UCHIKURA Y,JA |
分类号 |
G06K9/46;(IPC1-7):G06K9/02 |
主分类号 |
G06K9/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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