Reduction of ring artefacts in high resolution micro-CT reconstructions.

@article{Sijbers2004ReductionOR,
  title={Reduction of ring artefacts in high resolution micro-CT reconstructions.},
  author={Jan Sijbers and Andrei A. Postnov},
  journal={Physics in medicine and biology},
  year={2004},
  volume={49 14},
  pages={
          N247-53
        }
}
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… 
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A method based on independent component analysis (ICA) is presented, which deals with the reconstructed CBCT image and can effectively reduce such ring artifacts.
...

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