发明名称 |
A calibration method for compensating for non-uniformity errors in sensors measuring specular reflection |
摘要 |
This invention relates to a method for the calibration of linear array photo sensors operating in a specular reflection mode. Errors may be introduced when a highly diffused image is measured by the linear array photosensor that was calibrated in a specular mode. These errors result in artifacts such as streaks in the captured image. The method measures non-uniformity errors using a highly diffuse white reflective surface, and then applies an appropriate scaled pixel-wise correction factor to the image when the sensor is used in the specular mode. |
申请公布号 |
EP2073067(A3) |
申请公布日期 |
2012.05.02 |
申请号 |
EP20080172362 |
申请日期 |
2008.12.19 |
申请人 |
XEROX CORPORATION |
发明人 |
OSSMAN, KENNETH R.;VITURRO, ENRIQUE R. |
分类号 |
G03G15/00;G01N21/55 |
主分类号 |
G03G15/00 |
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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