Patent ID: 8520902
Filing Date: 2013-08-27
Classification: B41F,B65H,G06T

Abstract:
1. An optical control method for use in print finishing, comprising: a. guiding a planar printed product by use of a conveyor for transporting the printed product along a conveying path past at least one optical sensor; b. capturing an electronic image by use of the at least one optical sensor from a recording perspective with a recording direction arranged obliquely relative to a plane defined by the printed product, wherein the electronic image represents at least one region of the printed product; c. converting the electronic image into a corrected image on the basis of correction indications to convert the recording perspective of the at least one optical sensor into a target perspective, wherein the target perspective has a recording direction arranged substantially at right angles with respect to a plane defined by the printed product; d. comparing the corrected image with a reference value or a reference image; and e. generating at least one signal that reflects a result of the comparison.