Systematic experiments to quantitatively assess image quality for CT scans of a Karoo tetrapod fossil

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dc.contributor.authorTshibalanganda, Muofhe
dc.contributor.authordu Plessis, Anton
dc.contributor.authorLe Roux, Stephan G.
dc.contributor.authorTaylor, Wendy L.
dc.contributor.authorSmith, Roger M. H.
dc.contributor.authorBrowning, Claire
dc.date.accessioned2019-08-16T12:25:12Z
dc.date.available2019-08-16T12:25:12Z
dc.date.issued2019-08
dc.description.abstractOver the past decade non-destructive, three-dimensional visualization and analysis of fossils using X-ray tomography has greatly advanced palaeontological studies worldwide. Micro-computed tomography (microCT) is now accepted as best practice in palaeontological studies to augment the anatomical description of newly discovered fossils. Despite advances in laboratory microCT hardware, software and skills of users, there is a lack of clear methodologies for scanning and analysing fossils. Here we report on a systematic and detailed study of the quantitative effects of the variation of different microCT scanning parameters on the image quality of an unprepared fossilized Karoo tetrapod skull and parts of the postcrania. Results indicate that voltage variations do not increase the contrast for the bone as one would expect, and the best image quality solution is found using high frame averaging and high X-ray flux (current). Although this study was limited to one specimen, the results may find a practical use for future studies involving similar fossils.en_ZA
dc.description.librarianJNC2019en_ZA
dc.funderPalaeontological Scientific Trust (PAST)en_ZA
dc.identifier.issn2410-4418
dc.identifier.urihttps://hdl.handle.net/10539/27891
dc.journal.titlePalaeontologia africanaen_ZA
dc.journal.volume54en_ZA
dc.language.isoenen_ZA
dc.orcid.id0000-0003-1933-5698en_ZA
dc.orcid.id0000-0002-4370-8661en_ZA
dc.orcid.id0000-0002-5617-8137en_ZA
dc.orcid.id0000-0002-9899-5864en_ZA
dc.orcid.id0000-0001-6806-1983en_ZA
dc.orcid.id0000-0003-1931-7502en_ZA
dc.publisherEvolutionary Studies Instituteen_ZA
dc.rightsCopyright 2019 the Authorsen_ZA
dc.subjectMicroCTen_ZA
dc.subjectImage qualityen_ZA
dc.subjectX-ray tomographyen_ZA
dc.subjectpalaeontologyen_ZA
dc.titleSystematic experiments to quantitatively assess image quality for CT scans of a Karoo tetrapod fossilen_ZA
dc.typeArticleen_ZA
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