Optical control method for detecting printed products during print finishing
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United States of America Patent
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Aug 27, 2013
Grant Date -
Jun 30, 2011
app pub date -
Apr 22, 2009
filing date -
Jul 25, 2008
priority date (Note) -
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Abstract
An optical control method for use in print finishing, comprising the following steps: First, guiding a planar printed product (12, 13) along a conveying path past at least one optical sensor (14). Secondly, detecting an electronic image by the optical sensor (14), wherein the electronic image comprises at least one region of the printed product (12, 13). Thirdly, transferring the electronic image into a corrected image on the basis of corrective information, which converts a recording perspective of the at least one optical sensor (14) into a target perspective. Fourth, comparing the corrected image to a reference value or a reference image, and generating at least one signal (27) on the basis of a result of the comparison.
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