Original scientific paper

https://doi.org/10.31803/tg-20200427122313

Image Artefacts in Industrial Computed Tomography

Amalija Horvatić Novak orcid.org/0000-0003-4665-255X ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lucica 5, 10000 Zagreb, Croatia
Biserka Runje orcid.org/0000-0002-7786-0864 ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lucica 5, 10000 Zagreb, Croatia
Zdenka Keran orcid.org/0000-0001-7894-6590 ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Lucica 5, 10000 Zagreb, Croatia
Marko Orošnjak orcid.org/0000-0003-0929-1425 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia

Abstract

Computed tomography is a method that has been used for many years in medicine and material analysis, and recently it has also been introduced in dimensional measurements. The method has a lot of advantages compared to other 3D measurement methods, with the largest one being the possibility to perform a non-destructive measurement of an object’s inner geometry. However, it is a complex method with a large number of parameters that influence measurement results. Some of these parameters are image artefacts that occur in the scanning and reconstruction process. An artefact is any artificial feature which appears on the CT image, but does not correspond to the physical feature of an object. In order to achieve metrological traceability, it is necessary to eliminate and minimize the influence of image artefacts on measurement results. This paper presents and explains image artefacts in industrial computed tomography as the consequences of different influence parameters in the CT system.

Keywords

computed tomography; dimensional measurements; image artefacts

Hrčak ID:

247403

URI

https://hrcak.srce.hr/247403

Publication date:

9.12.2020.

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