3D Video Measurement of Pelvis Bone Deformation
Author Information
Author(s): Beat Göpfert, Zdzislaw Krol, Marie Freslier, Andreas H Krieg
Primary Institution: University of Basel
Hypothesis
Can a material testing machine combined with a 3D video motion capturing system measure the sub millimetre deformation of a whole pelvis specimen?
Conclusion
The 3D test setup allows for accurate dynamic testing of materials, which can improve implant design and estimation of material characteristics.
Supporting Evidence
- The accuracy of the measurement system was verified with a 3D-displacement curve.
- The noise level for a marker tracked by two cameras was ± 0.036 mm.
- The setup allows for dynamic testing of a wide range of materials.
Takeaway
This study shows how we can use special cameras to see tiny changes in the shape of a pelvis bone when it's pushed and pulled, which helps make better implants.
Methodology
A pelvis specimen was tested under dynamic loading while tracking reflective markers with a 3D video motion capturing system.
Limitations
The accuracy of the measurement system is limited by the noise level of the cameras and the number of cameras tracking each marker.
Digital Object Identifier (DOI)
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