Research Article

Feature Extraction from 3D Point Cloud Data Based on Discrete Curves

Figure 3

Geometric properties estimation from three discrete spatial curves. The color bars indicate the curvatures, and the blue and red vectors denote the unit tangent vectors and principal normal vectors, respectively.
290740.fig.003a
(a) Discrete clelia curve
290740.fig.003b
(b) Discrete elliptic helix
290740.fig.003c
(c) Discrete toric solenoid