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Optical Coordinate Measuring Techniques for the Determination and Visualization of 3D Displacements in Crash Investigations
Technical Paper
2003-01-0891
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The measurement of 3D coordinates using optical techniques is well known for more than 50 years. Today, modern photogrammetric systems are based on handheld digital cameras and are used to identify the location of any circular marker or feature on the object's surface. The ease of use and the accurate and automated derivation of 3D coordinates from 2D digital images helped to establish a powerful tool for position control, assembly checks and reverse engineering.
A new application is the analysis of real vehicle crashes. The location of hundreds of markers on the damaged vehicle can easily be determined in vehicle body position. These coordinates are being compared to the undeformed geometry and provide herby 3D information on any displacement. Using reverse engineering techniques, surfaces are created from the 3D points and thus a 3D model of the crashed vehicle is available for an easy visualization of the deformation.
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Authors
Topic
Citation
Behring, D., Thesing, J., Becker, H., and Zobel, R., "Optical Coordinate Measuring Techniques for the Determination and Visualization of 3D Displacements in Crash Investigations," SAE Technical Paper 2003-01-0891, 2003, https://doi.org/10.4271/2003-01-0891.Also In
Accident Reconstruction from the SAE 2003 World Congress on CD-ROM
Number: SP-1773CD; Published: 2003-03-03
Number: SP-1773CD; Published: 2003-03-03
References
- Becker Holger “Photogrammetric measurement as a mobile tool for deformation analysis in real world accidents” VDI 2001
- Reich Carsten “Vollständige optische Formerfassung durch photogrammetrische Verknüpfung von Teilflächen” Thesis Cuvillier, Göttingen 1999
- VDI/VDE-Gesellschaft Mess-und Automatisierungs-technik (GMA) “Optische 3D-Meβsysteme – Systeme mit punktförmiger Antastung” VDI/VDE 2634 Beuth GmbH Berlin 2000
- Luhmann Thomas “Nahbereichsphotogrammetrie” Wichmann Heidelberg 2000