发明名称 |
Image analysis system employing filter look-up tables |
摘要 |
An image processing system and filters applicable to such a system wherein digitized discrete signals, as pixel signals, are processed in a look-up table according to the sum of the current digitized value of a discrete signal multiplied by a factor and the digitized value of the signal from the look-up table for a preceding discrete signal multiplied by one less the factor for low pass filtering; and wherein high pass filtering is the difference between a factor times the current digitized value of a discrete signal and the digitized value of the low pass filter from the look-up table for a preceding discrete signal multiplied by a factor. Two dimensional filtering in a two dimensional array of pixels is afforded by identifying pixel signals by row and column and high pass filtering in pixel columns from row-to-row. Vector combinations of row and column filtered values are employed in a system for electro-optical inspection of the image of a product. |
申请公布号 |
US4941191(A) |
申请公布日期 |
1990.07.10 |
申请号 |
US19880140459 |
申请日期 |
1988.01.04 |
申请人 |
O-I NEG TV PRODUCTS, INC. FORMERLY KNOWN AS OWENS-ILLINOIS TELEVISION PRODUCTS, INC.) |
发明人 |
MILLER, JOHN W. V.;MILLER, PETER S. |
分类号 |
G06T5/00;G06T7/00 |
主分类号 |
G06T5/00 |
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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