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Figure 1
Principle of the rings separation. θ is the projection angle and s is the detector bin index. The vertical orange and green lines represent spurious lines giving rise to ring artifacts. The decomposition [P{\bf{x}}+{\bf{r}}] forces the ring values to be captured in the vector [{\bf{r}}] (independent of the projection angle). In the end, only the part without the rings [{\bf{r}}] is returned.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 5| September 2015| Pages 1268-1278
https://doi.org/10.1107/S1600577515010176
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