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, 49 (14), N247-53

Reduction of Ring Artefacts in High Resolution micro-CT Reconstructions

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Reduction of Ring Artefacts in High Resolution micro-CT Reconstructions

Jan Sijbers et al. Phys Med Biol.

Abstract

High resolution micro-CT images are often corrupted by ring artefacts, prohibiting quantitative analysis and hampering post processing. Removing or at least significantly reducing such artefacts is indispensable. However, since micro-CT systems are pushed to the extremes in the quest for the ultimate spatial resolution, ring artefacts can hardly be avoided. Moreover, as opposed to clinical CT systems, conventional correction schemes such as flat-field correction do not lead to satisfactory results. Therefore, in this note a simple but efficient and fast post processing method is proposed that effectively reduces ring artefacts in reconstructed micro-CT images.

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