Patent ID: 8135197

Claim:
An examination apparatus for examination of an object of interest, the examination apparatus comprising: a calculation unit that creates a first streak-only image on a basis of a first segmentation of a first region from a reconstructed image of the object of interest; creates a second streak-only image on a basis of a second segmentation of a second region from the reconstructed image; subtracts the second streak-only image from the reconstructed image, resulting in a corrected reconstructed image; and subtracts the first streak-only image, weighted by a first weighting value, from the corrected reconstructed image, thereby performing an adaptive artifact reduction on the basis of a roughness function, resulting in a final image of the object of interest; wherein the roughness function is based on the first weighting value applied to the first streak-only image; and wherein the final image corresponds to a minimum of the roughness function.