Patent ID: 8606033

Claim:
A method for providing two-dimensional image data with the aid of an X-ray image recording device, which has an X-ray beam source and an X-ray beam detector and also means for processing detector data provided by the X-ray beam detector, comprising the steps of: a) operating the X-ray image recording device without an image object in the X-ray image recording device in order to obtain detector data corresponding to an empty image, b) evaluating the detector data obtained in step a) for obtaining the value of a statistical variable that contains information relating to the amount of noise, c) setting the value of at least one variable for a filtering process, which at least one variable determines at least one of: the type and the extent of at least one of: a spatial and temporal filtering process as a function of the value of the statistical variable, d) operating the X-ray image recording device with an image object in the X-ray image recording device in order to obtain detector data corresponding to an X-ray image of the image object, and e) processing the detector data using at least one of a spatial and temporal filtering process determined by the at least one variable set in step c) in order to provide the two-dimensional image data, wherein the statistical variable defines a curve profile of a curve that reproduces an extent of averaging within the scope of the filtering process as a function of a local standard deviation or a standard deviation relating to a short period of time, such that the noise is averaged away by the filtering process.