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Applodynsca, Thomas More

Although research on the biomechanical behavior of the foot is widespread, the origin and impact of the treatment of foot problems are poorly understood.

In biomechanical research, marker-based motion analysis is widely accepted. A variety of marker-based foot models have been developed (Baker, 2006, Deschamps et al., 2011, De Mits et al., 2012, Leardini et al., 2007, Simon et al., 2006). These models divide the foot into several rigid segments and kinematics are calculated as joint rotation angles representing the relative motion of each pair of segments. The foot models differ in the number and choice of segments, and in the way the segments are linked to foot anatomy by marker placement.

However, these marker-based methods show several severe limitations this research focused on markerless dynamic 3D scanning (D3DScanning). The use of D3DScans implies a radically different approach for the construction of the multi-segment foot model: the foot anatomy is identified via the surface shape instead of distinct landmark points. We propose a 4-segment foot model consisting of the shank (Sha), calcaneus (Cal), metatarsus (Met) and hallux (Hal). These segments are manually selected on a static scan. To track the segments in the dynamic scan, the segments of the static scan are matched on each frame of the dynamic scan using the iterative closest point (ICP) fitting algorithm.

This research was carried out by Mobilab, Thomas More, Biomechnanica, KU Leuven and University Hospital of Tübingen and funded by the EreSME program.


Project: Applodynsca

Coordinator project: Mobilab @ Thomas More

Lieven.DeMaesschalck@thomasmore.be

+ 32 (0)479911974


 



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