发明名称 |
OPTICAL WEB-BASED DEFECT DETECTION USING INTRASENSOR UNIFORMITY CORRECTION |
摘要 |
<p>Techniques are described in which an image capture device captures image data from web material. The image data comprises pixel values for the cross-web field of view of the image capture device. An analysis computer includes a computer-readable medium that stores parameters for a plurality of different normalization algorithms to normalize a cross-web background signal for the image capture device to a common desired value. The computer-readable medium further stores coefficients specifying a weighting for each of the plurality of normalization algorithms. The analysis computer computes a normalized value for each of the pixels of the image data as a weighted summation of results from application of at least two of the pixel normalization algorithms using the stored parameters.</p> |
申请公布号 |
SG182314(A1) |
申请公布日期 |
2012.08.30 |
申请号 |
SG20120048914 |
申请日期 |
2011.01.03 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
FLOEDER, STEVEN P.;RUNDQUIST, MATTHEW V. |
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