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. Author manuscript; available in PMC: 2010 Nov 23.
Published in final edited form as: Comput Med Imaging Graph. 2010 Jan;34(1):79–90. doi: 10.1016/j.compmedimag.2009.05.003

Fig. 5.

Fig. 5

(a) Affected vertices (black circles) when the displacement vector at the voxel marked with a red dot is modified. (b) The volumes of the gray tetrahedra need to be checked to see if the displacement at the red dot will affect their topology.