Spectral Pattern Classification in Lidar Data for Rock Identification in Outcrops

Figure 9

Classified point cloud from the rock samples. The basalt sample (cyan—class 1) is easily recognizable, as the edge effect above all samples, but the other samples need a specific analysis to be identified. The granite is formed by 50% of class 2 (green), 40% of class 3 (purple), and 10% of class 4 (red); the banded iron formation is formed by 70% of class 2, 15% of class 3, and 15% class 4; the gabbro is formed by 85% of class 4 and 15% class 2.