Verfahren für einen Computertomographen zur Nachverarbeitung eines Schnittbildes und nach diesem Verfahren arbeitender Computertomograph

摘要

In a method for operating a third-generation computed tomography apparatus and in a computed tomography apparatus operating according to this method, ring artefacts are removed. The pixel values of the tomogram are subjected to one or more median filterings and to an averaging. The median filterings and the averaging take place along a number of processing directions.