Comparison of different measures for the single point uncertainty in industrial X-ray computed tomography

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autorinnen und Autoren: Müller A, Hausotte T
Verlag: e-Journal of Nondestructive Testing
Jahr der Veröffentlichung: 2019
ISSN: 1435-4934
Sprache: Englisch


Abstract

The concept of single point uncertainty describes a methodology to statistically evaluate the local measurement results of a measurement series with respect to the associated reference geometry. The single point uncertainties can be used as local quality parameters or weighting factors in subsequent processing of a measurement and can therefore have a significant impact on the final measurement results. The core routine used in former work at the Institute of Manufacturing Metrology, which is based on ray-triangle intersection tests, provided accurate results under most conditions. Nevertheless, some disadvantages were observed, including the very high computational demand and an inaccurate sampling of edge regions. In order to compensate for these deficiencies, another distance measure utilizing an expanded nearest neighbour approach was implemented and compared to the existing solution. It could be shown that the alternative solution for the determination of the single point uncertainty in repeated computed tomography (CT) measurements can provide very similar results while having substantially less computational requirements on the hardware used.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Hausotte, Tino Prof. Dr.-Ing.
Lehrstuhl für Fertigungsmesstechnik
Müller, Andreas
Lehrstuhl für Fertigungsmesstechnik


Zitierweisen

APA:
Müller, A., & Hausotte, T. (2019). Comparison of different measures for the single point uncertainty in industrial X-ray computed tomography. In Proceedings of the 9th Conference on Industrial Computed Tomography. ​Centro Culturale Altinate San Gaetano, Padova, IT: e-Journal of Nondestructive Testing.

MLA:
Müller, Andreas, and Tino Hausotte. "Comparison of different measures for the single point uncertainty in industrial X-ray computed tomography." Proceedings of the 9th Conference on Industrial Computed Tomography, ​Centro Culturale Altinate San Gaetano, Padova e-Journal of Nondestructive Testing, 2019.

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Zuletzt aktualisiert 2019-16-04 um 04:23