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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Ann Biomed Eng. 2013 Feb 15;41(6):1162–1171. doi: 10.1007/s10439-013-0762-1

Figure 2.

Figure 2

Three-dimensional reconstructions of the femur showing the process of identifying the head neck junction and regionalization of the femoral head. (a) First, a contour map of principal curvature was calculated for the entire proximal femur with inflection points identified by the dark line around the neck. (b) Next, a 3D cutting surface was fit to the inflection points. (c) The femoral head (blue) was identified as the section above the cutting surface. (d) Finally, the femoral head was regionalized into 4 regions.