Patent ID: 8534792
Filing Date: 2013-09-17
Classification: B41J,H04N

Abstract:
1. Method for calibrating an imaging device, which is configured to generate a first image at a first imaging position and a second image at a second imaging position, for at least partly compensating a misalignment between the first image and the second image, the method comprising a) imaging a calibration target at the first imaging position and at the second imaging position, the first image comprising at least a part of the calibration target, thereby forming a first partial target image, and the second image comprising at least a part of the calibration target, thereby forming a second partial target image, wherein the first partial target image comprises a first target component and the second partial target image comprises a second target component associated with the first target component; and b) determining a relative position between the first partial target image and the second partial target image for determining at least one misalignment parameter, the step of determining a relative position comprising correlating at least one property of the first target component and the associated second target component, wherein the calibration target comprises: a first calibration component, a second calibration component and a third calibration component, the first, second and third calibration components being substantially the same, the first and second calibration components extending along a first direction, the third calibration component being arranged along a second direction, substantially perpendicular to the first direction, with respect to the first and second calibration components, and wherein the first image comprises the first calibration component and a first part of the third calibration component, and the second image comprises the second calibration component and a second part of the third calibration component.