Patent ID: 7471760

Claim:
A device for obtaining structural data of a moving object, comprising: a radiation source configured to be moved around the object along a measuring path; a detector arranged on an opposite side of the object relative to the radiation source for generating a plurality of projection images of the object, the detector configured to be moved based on the movement of the radiation source; a modeling unit for determining a plurality of object models of the object using the projection images corresponding to a plurality of time frames; wherein each object model of the plurality of object models is determined using a plurality of projection images per cycle of the moving object, wherein each object model corresponds to a different time frame, and wherein each time frame comprises a plurality of cycles of the moving object; a movement analyzing unit for determining model projection images for various projection angles based on the object models and for determining movement fields for the projection images using the model projection images assigned to a projection angle at various relative times; a movement compensating unit for calculating movement-corrected projection images based on the movement fields, wherein said movement-corrected projection images are recorded at a fixed relative time and at different projection angles; and a reconstruction unit for calculating the structural data of the object using the movement-corrected projection images.