Methods and Systems for Monitoring an Image Capturing Device
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United States of America Patent
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Issued Date -
Jul 31, 2014
app pub date -
Jan 30, 2013
filing date -
Jan 30, 2013
priority date (Note) -
Abandoned
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Abstract
A method and system for monitoring an image capturing device determines a distortion of an image of a printing medium, wherein the image is captured by means of an image capturing device, such as an in-line camera or scanner, and wherein the image comprises a calibration pattern with a plurality of calibration marks printed on the printing medium. The calibration pattern comprises at least a first sub-set of calibration marks relating to a first separation and a second sub-set of calibration marks relating to a second separation. The distortion is determined by analyzing the first sub-set of calibration marks, and the image is corrected based on said determined distortion. The displacement of the second sub-set of calibration marks with respect to the first sub-set of calibration marks may then be determined. The invention may be employed in a wide range of printers and presses.
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