发明名称 |
Method and system for document image feature extraction |
摘要 |
A set of image feature extraction techniques to locate and group documents based upon appearance in a database management system. The system automatically determines visual characteristics of document images and collects documents together according to the relative similarity of their document images. The system is operable on both binary and grayscale images.
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申请公布号 |
US6006226(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19970936339 |
申请日期 |
1997.09.24 |
申请人 |
RICOH COMPANY LIMITED;RICOH CORPORATION |
发明人 |
CULLEN, JOHN F.;KEITH, ALEX;ZANDI, AHMAD |
分类号 |
G06F17/30;(IPC1-7):G06F17/00 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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地址 |
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