An analytical formula for ring artefact suppression in X-ray tomography

Sofya Titarenko, Philip J. Withers, Anatoly Yagola

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


A method of ring artefact suppression in X-ray computerised tomography (CT) reconstructions is proposed. The method is based on the assumption that a sinogram is a smooth function along the horizontal spatial coordinate. Methods based on the theory of ill-posed problems are applied to find a regularised solution. An analytical formula for the solution is proposed allowing fast ring artefact suppression. Its performance is demonstrated for parallel beam synchrotron X-ray tomography.

Original languageEnglish
Pages (from-to)1489-1495
Number of pages7
JournalApplied Mathematics Letters
Issue number12
Early online date8 Aug 2010
Publication statusPublished - 1 Dec 2010
Externally publishedYes


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