Optical Coordinate Measuring Techniques for the Determination and Visualization of 3D Displacements in Crash Investigations 2003-01-0891
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.
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. Download Citation
Author(s):
Dirk Behring, Jan Thesing, Holger Becker, Robert Zobel
Affiliated:
GOM mbH, Volkswagen AG
Pages: 9
Event:
SAE 2003 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Accident Reconstruction 2003-SP-1773
Related Topics:
Scale models
Imaging and visualization
Assembling
Optics
Automation
Crashes
Tools and equipment
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