发明名称 |
Pattern features extracting apparatus and method |
摘要 |
A plurality of different mask pattern data which are indicated by values obtained from Hermitte's polynomials of different degrees weighted by a Gaussian function are stored in mask memories, respectively. Each mask pattern data stored in each of the mask memories is convolved by a sum-of-product circuit together with unknown input pattern data. A plurality of extracted pattern feature data are stored in pattern feature memories.
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申请公布号 |
US4543660(A) |
申请公布日期 |
1985.09.24 |
申请号 |
US19830485061 |
申请日期 |
1983.04.14 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
MAEDA, KEN-ICHI |
分类号 |
G06K9/80;(IPC1-7):G06K9/64 |
主分类号 |
G06K9/80 |
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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