Patent ID: 7492865
Filing Date: 2009-02-17
Classification: G06T

Abstract:
1. A method for generating at least one offset-corrected X-ray image with the aid of a flat-panel X-ray detector being operable in a radiography mode and in a fluoroscopy mode, wherein, in the radiography mode of the flat-panel X-ray detector, the method comprises: generating at least one X-ray image record by using the flat-panel X-ray detector and X-ray irradiation of an object and thus of the flat-panel X-ray detector, wherein one image data value is allocated to individual pixels, respectively, generating, without X-ray irradiation, at least one offset image record by using the flat-panel X-ray detector, wherein one image data value is allocated to individual pixels, respectively, and for the respective X-ray image records, subtracting the image data values of the offset image record pixel by pixel from the image data values of the X-ray image record and, thus, generating offset-corrected image data values which form the image record of an offset-corrected X-ray image for the respective X-ray image record, wherein the offset image record used for the offset correction of an X-ray image record is in each case recorded after the respective X-ray image record in time, wherein after a respective last offset image recording used for generating the offset image record associated with the X-ray image record, the method comprises: