Patent ID: 7599464

Claim:
A method for producing an image data record of an object, comprising: rotating, in order to scan the object, at least one X-ray tube relative to the object; detecting, via at least one detector, an attenuation of X-radiation during the rotation of the at least one X-ray tube and outputting detector output data; dividing a set of detector output data, representing beams over a specific angular range and scanning a specific subregion of the object, into m≧2 complete partial detector output data records respectively covering a same complete angular range, but reduced with their sampling density by 1/m and including mutually independent data records; reconstructing m intermediate image data records, representing an identical object region, from the m complete partial detector output data records; carrying out a correlation analysis between the m intermediate image data records; and producing an image data record that includes only correlated data and that includes no uncorrelated data.