Method for Calibrating the Position of a Laser Fan Beam Relative to the Projection Geometry of an X-Ray Device and X-Ray Device

A method for calibrating a position of a laser fan beam generated by a laser relative to a projection geometry of an x-ray device having an x-ray image system and an imaging device, comprising:

• determining a position of the imaging device relative to the projection geometry;
• determining a position of the laser fan beam relative to the imaging device;
• and
• reconstructing the position of the laser fan beam relative to the projection geometry.

An x-ray device, comprising:

• an x-ray imaging system comprising an x-ray source and an x-ray detector that records an x-ray image of an object;
• a laser that generates a laser fan beam for illuminating the object;
• an imaging device that records an image of the object;
• and
• a computation unit that:
• determines a position of the imaging device relative to a projection geometry of the x-ray device;
• determines a position of the laser fan beam relative to the imaging device;
• and
• calibrates a position of the laser fan beam relative to the projection geometry by reconstructing the position of the laser fan beam relative to the projection geometry.