Table 6. Comparison of classification accuracy by PCD deep learning models. Unit: %

Model Platform Down-sampling intensity OA Kappa F-Score
Pinus koraiensis Larix kaempferi
PointNet TLS 1024 94.9 87.3 96.4 90.9
2048 89.7 74.0 93.0 81.0
4096 89.7 74.0 93.0 81.0
8192 96.2 90.6 97.3 93.3
MLS 1024 87.2 66.6 91.4 75.0
2048 87.2 67.5 91.2 76.2
4096 83.3 58.3 88.5 69.8
8192 92.3 81.5 94.5 87.0
PointNet++ TLS 1024 96.2 90.6 97.3 93.3
2048 93.6 85.1 95.3 89.8
4096 94.9 87.7 96.4 91.3
8192 97.4 93.7 98.2 95.5
MLS 1024 96.2 90.6 97.3 93.3
2048 98.7 96.9 99.1 97.8
4096 92.3 81.5 94.5 87.0
8192 93.6 84.0 95.6 88.4