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

Figure 9

𝐶¹ discontinuity (Type II) with noise.

(a) 𝐶¹ discontinuity

(b) Chord length at 𝐶¹ discontinuity

(c) Angle variation at 𝐶¹ discontinuity

(d) Curvature at 𝐶¹ discontinuity