Measuring arrangement e.g. computed tomography measuring arrangement, calibrating method, involves determining geometry parameter of geometrical model, which describes geometry of arrangement, by evaluation of radiographic image

摘要

The method involves penetrating an invasive radiation into a calibrating object and detecting resulting radiation of a detection unit (3) of a measuring arrangement. A radiographic image of the object is produced from detection signals that correspond to the detected radiation. A geometry parameter of a geometrical model, which describes geometry of the arrangement, is determined by evaluation of the radiographic image. Independent claims are also included for the following: (1) a calibrating object for calibrating a measuring arrangement (2) an arrangement for calibrating a measuring arrangement comprising a calibrating object.