Biomedical Engineering Reference
In-Depth Information
Fig. 8.6
Finding the range of motion in the human hip joint based on a hip graphical model
[
3
,
13
] (2007 IEEE. Reprinted, with permission, from Arbabi E, Boulic R, Thalmann D (2007)
A fast method for finding range of motion in the human joints. Paper presented at the 29th Annual
international conference of the IEEE engineering in medicine and biology society, Lyon, France)
the minimum angular distance is returned as the maximum range of motion. In addi-
tion to calculating the maximum range of motion, parts of the objects which would
collide first (when meeting the maximum range of motion) are also found [
3
,
31
].
8.4.3 Testing and Comparison
The proposed method was evaluated for finding the range of motion in the human hip
joint. The tests were based on finding the bone to bone range of motion; where the
femoral bone was considered as a mobile part constraint by the pelvis (see Fig.
8.6
).
For evaluating their method, Arbabi et al. [
3
] used 3D triangular meshes obtained by
segmenting MR Images taken from a patient by the method described in [
10
]. Center
of rotation was also found based on the scanned 3D models [
7
].
2
The method was
tested for four different mesh resolutions.
The experiments showed that the proposed algorithm is significantly faster than
the previous methods (10-66 times faster) and can be used for the biomedical
2
The 3D Meshes were prepared by Benjamin Gilles at MIRALab, University of Geneva.
