Conference Proceedings: Removing ring artefacts from synchrotron radiation-based hard x-ray tomography data

Thalmann, Peter and Bikis, Christos and Schulz, Georg and Paleo, Pierre and Mirone, Alessandro and Rack, Alexander and Siegrist, Stefan and Cörek, Emre and Huwyler, Jörg and Müller, Bert. (2017) Conference Proceedings: Removing ring artefacts from synchrotron radiation-based hard x-ray tomography data. Proceedings of SPIE, 10391. pp. 1039114-1039111.

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Official URL: http://edoc.unibas.ch/57107/

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In hard X-ray microtomography, ring artefacts regularly originate from improperly functioning pixel elements on the detector or from particles and scratches on the scintillator. We show that due to the high sensitivity of contemporary beamline setups further causes inducing inhomogeneities in the impinging wavefronts have to be considered. We propose in this study a method to correct the thereby induced failure of simple flatfield approaches. The main steps of the pipeline are (i) registration of the reference images with the radiographs (projections), (ii) integration of the flat-field corrected projection over the acquisition angle, (iii) high-pass filtering of the integrated projection, (iv) subtraction of filtered data from the flat-field corrected projections. The performance of the protocol is tested on data sets acquired at the beamline ID19 at ESRF using single distance phase tomography.
Faculties and Departments:05 Faculty of Science > Departement Pharmazeutische Wissenschaften > Pharmazie > Pharmazeutische Technologie (Huwyler)
UniBasel Contributors:Huwyler, Jörg and Siegrist, Stefan and Cörek, Emre
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Society of Photo-optical Instrumentation Engineers (SPIE)
Note:Publication type according to Uni Basel Research Database: Journal article -- The publication is available at Society of Photo-optical Instrumentation Engineers (SPIE), see DOI link
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Last Modified:29 Jan 2019 17:43
Deposited On:16 May 2018 07:36

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