WERKWIJZE EN INRICHTING VOOR HET VERMINDEREN VAN BEELD- FOUTEN IN COMPUTER-TOMOGRAFIEBEELDEN.

摘要

A method of reducing artefacts in uncorrected images which are obtained by computer tomography and which consist of a reconstructed object image and an outer region which surrounds the object image. Image data in those elements of the outer region which are associated with a measuring path are used to derive error signals. The error signals are subtracted from the image data in elements of the uncorrected image in order to reduce artefacts which extend through the image in straight strips.