Abstract
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 language | English |
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Pages (from-to) | 1489-1495 |
Number of pages | 7 |
Journal | Applied Mathematics Letters |
Volume | 23 |
Issue number | 12 |
Early online date | 8 Aug 2010 |
DOIs | |
Publication status | Published - 1 Dec 2010 |
Externally published | Yes |