A priori information in a regularized sinogram-based method for removing ring artefacts in tomography

Sofya Titarenko, Valeriy Titarenko, Albrecht Kyrieleis, Philip J. Withers

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Ring artefacts in X-ray computerized tomography reconstructions are considered. The authors propose a ring artefact removal method based on a priori information regarding the sinogram including smoothness along the horizontal coordinate, symmetry of the first and the final rows and consideration of small perturbations during acquisition. The method does not require prior reconstruction of the original or corrected sinograms. Its numerical implementation is based on quadratic programming. Its efficacy is examined with regard to experimental data sets collected on graphite and bone.

Original languageEnglish
Pages (from-to)540-549
Number of pages10
JournalJournal of Synchrotron Radiation
Volume17
Issue number4
Early online date14 May 2010
DOIs
Publication statusPublished - 1 Jul 2010
Externally publishedYes

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