A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging

Langkemper, Ralph; Moser, Stefan; Büttner, Markus; Rakus, Dominik; Sättler, Axel; Nau, Siegfried

doi:10.3390/jimaging8020028

Open AccessArticle

A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging

by

Ralph Langkemper

^*,

Stefan Moser

,

Markus Büttner

,

Dominik Rakus

,

Axel Sättler

and

Siegfried Nau

Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institut, EMI, Ernst-Zermelo-Straße 4, 79104 Freiburg, Germany

^*

Author to whom correspondence should be addressed.

J. Imaging 2022, 8(2), 28; https://doi.org/10.3390/jimaging8020028

Submission received: 16 November 2021 / Revised: 16 January 2022 / Accepted: 20 January 2022 / Published: 28 January 2022

(This article belongs to the Special Issue X-ray Digital Radiography and Computed Tomography)

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Abstract

This paper shows that the X-ray analysis method known from the medical field, using a priori information, can provide a lot more information than the common analysis for high-speed experiments. Via spatial registration of known 3D shapes with the help of 2D X-ray images, it is possible to derive the spatial position and orientation of the examined parts. The method was demonstrated on the example of the sabot discard of a subcaliber projectile. The velocity of the examined object amounts up to 1600 m/s. As a priori information, the geometry of the experimental setup and the shape of the projectile and sabot parts were used. The setup includes four different positions or points in time to examine the behavior over time. It was possible to place the parts within a spatial accuracy of 0.85 mm (standard deviation), respectively 1.7 mm for 95% of the errors within this range. The error is mainly influenced by the accuracy of the experimental setup and the tagging of the feature points on the X-ray images.

Keywords: 2D to 3D registration; high-speed X-ray imaging; fast-moving object; sabot discard; a priori information

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MDPI and ACS Style

Langkemper, R.; Moser, S.; Büttner, M.; Rakus, D.; Sättler, A.; Nau, S. A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging. J. Imaging 2022, 8, 28. https://doi.org/10.3390/jimaging8020028

AMA Style

Langkemper R, Moser S, Büttner M, Rakus D, Sättler A, Nau S. A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging. Journal of Imaging. 2022; 8(2):28. https://doi.org/10.3390/jimaging8020028

Chicago/Turabian Style

Langkemper, Ralph, Stefan Moser, Markus Büttner, Dominik Rakus, Axel Sättler, and Siegfried Nau. 2022. "A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging" Journal of Imaging 8, no. 2: 28. https://doi.org/10.3390/jimaging8020028

APA Style

Langkemper, R., Moser, S., Büttner, M., Rakus, D., Sättler, A., & Nau, S. (2022). A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging. Journal of Imaging, 8(2), 28. https://doi.org/10.3390/jimaging8020028

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A Priori Information Based Time-Resolved 3D Analysis of the Trajectory and Spatial Orientation of Fast-Moving Objects Using High-Speed Flash X-ray Imaging

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