发明名称 |
Pattern recognition system. |
摘要 |
The present invention relates to apparatus for separately extracting circular and linear components in a complex image, the apparatus comprising: (a) a circular filter means for covering a portion of the complex image by filter blocks, wherein the filter blocks comprise a center block and at least one set of blocks angularly disposed to encircle the center block; (b) a first calculator element for computing average image concentration value for each of a plurality of directions with said circular filter means covering a subject portion of the complex image, wherein the concentration value for one directional component is a maximum; (c) a second calculator element for computing a first feature S in which the values of the directional components are evaluated with maximum directional component being enhanced; (d) a third calculator element for computing a second feature value S' in which the values of the directional components are evaluated with the maximum directional component being weakened; and (e) a mode selector for selectively applying (i) the first feature value S to detect linear image components and (ii) the second feature value S' to detect circular image components. |
申请公布号 |
EP0225151(A2) |
申请公布日期 |
1987.06.10 |
申请号 |
EP19860309173 |
申请日期 |
1986.11.25 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ITOH, SHOJI;SUZUKI, HIDEOOEABITAIIJIMA 305 |
分类号 |
A61B6/00;G06K9/46;G06Q50/22;G06Q50/24;G06T7/00 |
主分类号 |
A61B6/00 |
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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