Table 9 The accuracy assessment results of land cover fine classification with different feature screening algorithms.
Methods | Data | LiDAR | HSI | LiDAR + HSI | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Class | Precision | Recall | F-Score | Precision | Recall | F-Score | Precision | Recall | F-Score | |
Raw data | Building | 91.55% | 88.89% | 90.20% | 92.75% | 87.19% | 89.89% | 92.35% | 92.59% | 92.47% |
White birch | 73.30% | 94.08% | 82.40% | 40.30% | 91.28% | 55.92% | 79.23% | 77.26% | 78.23% | |
Road | 59.54% | 81.92% | 68.96% | 86.75% | 91.65% | 89.13% | 92.60% | 95.12% | 93.84% | |
Naked land | 57.43% | 36.38% | 44.54% | 91.49% | 90.06% | 90.77% | 89.65% | 89.49% | 89.57% | |
Scrubby vegetation | 73.10% | 73.90% | 73.50% | 92.17% | 49.70% | 64.58% | 92.11% | 91.10% | 91.60% | |
Duckweed | 83.78% | 86.92% | 85.32% | 95.11% | 100.00% | 97.49% | 99.53% | 99.53% | 99.53% | |
Chinese scholar tree | 87.71% | 56.47% | 68.71% | 98.79% | 87.77% | 92.95% | 77.34% | 77.34% | 77.34% | |
Maize | 81.84% | 87.24% | 84.45% | 99.20% | 98.97% | 99.09% | 97.29% | 97.24% | 97.26% | |
OA | 74.43% | 87.96% | 92.49% | |||||||
ReliefF-P | Building | 87.12% | 91.03% | 89.03% | 89.10% | 89.10% | 89.10% | 97.33% | 97.33% | 97.33% |
White birch | 81.62% | 92.64% | 86.78% | 60.51% | 71.30% | 65.46% | 90.12% | 98.41% | 94.08% | |
Road | 65.17% | 83.92% | 73.37% | 79.27% | 89.19% | 83.94% | 88.40% | 95.67% | 91.89% | |
Naked land | 57.14% | 37.38% | 45.20% | 91.97% | 84.16% | 87.89% | 91.83% | 85.57% | 88.59% | |
Scrubby vegetation | 73.65% | 74.45% | 74.05% | 83.33% | 77.90% | 80.52% | 94.78% | 93.28% | 94.02% | |
Duckweed | 86.55% | 91.96% | 89.18% | 99.07% | 100.00% | 99.53% | 99.07% | 100.00% | 99.53% | |
Chinese scholar tree | 90.26% | 65.43% | 75.86% | 98.15% | 96.03% | 97.08% | 97.79% | 95.68% | 96.73% | |
Maize | 82.03% | 88.00% | 84.91% | 96.81% | 97.82% | 97.31% | 98.18% | 98.50% | 98.34% | |
OA | 76.10% | 89.44% | 94.87% | |||||||
RFE-CV | Building | 93.75% | 87.30% | 90.41% | 91.81% | 89.78% | 90.78% | 98.41% | 98.94% | 98.67% |
White birch | 69.34% | 91.59% | 78.93% | 59.64% | 73.21% | 65.73% | 88.15% | 100.00% | 93.70% | |
Road | 50.51% | 78.34% | 61.42% | 84.35% | 93.12% | 88.52% | 88.17% | 96.05% | 91.94% | |
Naked land | 52.35% | 29.52% | 37.76% | 91.35% | 85.86% | 88.52% | 92.22% | 86.55% | 89.30% | |
Scrubby vegetation | 66.12% | 73.29% | 69.52% | 84.70% | 79.59% | 82.07% | 95.09% | 93.82% | 94.45% | |
Duckweed | 45.24% | 17.76% | 25.50% | 99.53% | 100.00% | 99.77% | 100.00% | 100.00% | 100.00% | |
Chinese scholar tree | 82.12% | 52.88% | 64.33% | 99.25% | 94.60% | 96.87% | 99.62% | 92.25% | 95.80% | |
Maize | 81.31% | 87.24% | 84.17% | 98.64% | 98.09% | 98.36% | 98.40% | 98.26% | 98.33% | |
OA | 69.77% | 90.74% | 95.09% | |||||||
CFW | Building | 96.14% | 92.33% | 94.20% | 91.48% | 87.98% | 89.69% | 98.95% | 99.47% | 99.21% |
White birch | 83.85% | 92.21% | 87.83% | 59.29% | 71.25% | 64.72% | 94.80% | 98.80% | 96.76% | |
Road | 64.12% | 85.37% | 73.23% | 82.57% | 92.06% | 87.06% | 93.08% | 96.89% | 94.95% | |
Naked land | 70.12% | 32.82% | 44.71% | 91.79% | 83.98% | 87.71% | 94.86% | 92.31% | 93.57% | |
Scrubby vegetation | 75.15% | 78.54% | 76.80% | 82.23% | 78.70% | 80.43% | 97.66% | 97.06% | 97.36% | |
Duckweed | 84.10% | 93.93% | 88.74% | 98.62% | 100.00% | 99.30% | 99.53% | 100.00% | 99.77% | |
Chinese scholar tree | 90.04% | 74.82% | 81.73% | 98.48% | 93.50% | 95.93% | 99.62% | 97.43% | 98.51% | |
Maize | 80.88% | 92.94% | 86.49% | 97.85% | 98.17% | 98.01% | 99.06% | 98.79% | 98.92% | |
OA | 78.10% | 89.87% | 97.17% | |||||||
