Feature Extraction from 3D Point Cloud Data Based on Discrete Curves
Figure 24
Discrete curves extracted from the 3D point cloud data of a human face model: (a) 3D point cloud data of a human face model; (b) four groups of discrete curves: the horizontal discrete curves (purple), the vertical discrete curves (blue), the down-sloping discrete curves (brown), and the up-sloping discrete curves (green).
