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Relative performance improvements of the proposed U-Net + SK-ResNeXt configuration compared to various U-Net variations under different band combinations.
| Encoder | RGB | RG-NIR | RGB-NIR | SK-ResNeXt improvement | ||
|---|---|---|---|---|---|---|
| OA (%) | mIoU (%) | |||||
| U-Net | Baseline |  |
5.312 | 8.906 | ||
 |
6.928 | 6.938 | ||||
 |
5.854 | 7.794 | ||||
| ResNet50 |  |
0.307 | 0.798 | |||
 |
1.928 | 1.347 | ||||
 |
3.922 | 4.187 | ||||
| VGG16 |  |
0.756 | 0.657 | |||
 |
1.761 | 1.055 | ||||
 |
2.649 | 2.783 | ||||
| MobileNetV2 |  |
0.453 | 1.512 | |||
 |
1.937 | 2.552 | ||||
 |
4.899 | 8.525 | ||||
