Patent ID: 7650046

Claim:
Method of correcting artifacts in an image signal comprising the steps of: generating an artifact profile signal in an image processor, to reduce artifacts in a digital image, the artifact profile signal representing an estimation of the contribution of artifacts to a reference signal U, comprising said artifacts, in regions defined around the position of one or more artifact generating elements; via the image processor, extracting signal portions in said regions from said image signal; generating a new artifact profile signal for correction of said image signal by deforming said artifact profile signal at the image processor and using the image processor to correct the image signal that has been subjected to said extraction by means of said new artifact profile signal; wherein said new artifact profile signal is generated by the image processor via the following, data transformations for a number of deformed joint profiles: subtracting a deformed joint profile from said image signal to obtain a first signal; smoothing said first signal to obtain a second signal; generating a measure expressing the differences of the first and second signals; and selecting as a new artifact profile signal a deformed profile for which said measure is minimal.