A Multilevel Point Cloud Classification Method for Underground Tunnels Based on Three-Dimensional Moving LiDAR Measurements

Table 5

Comparison table of DBSCAN algorithm before and after optimization.

Algorithm name	Mean-overlap (%)	Mean-accuracy (%)	Time (s)
DBSCAN	90.33	91.39	21.45
EuclideanClusterExtraction	96.23	96.01	13.21
KT-DBSCAN	9634	96.44	13.01