Table 4 Quantitative comparison between the proposed method and nine alternative approaches
Method | PA (%) | IoU (%) | Precision (%) | Recall (%) | F1 (%) | Time(s) |
|---|---|---|---|---|---|---|
Our method | 93.74 | 73.19 | 75.78 | 95.54 | 84.52 | 5.73 |
Gaussian filter method on HSI | 80.65 | 45.34 | 73.07 | 54.01 | 62.17 | 5.36 |
HSI single band method | 76.57 | 48.23 | 54.23 | 81.34 | 65.07 | 1.06 |
Grayscale image method on RGB | 77.53 | 42.46 | 57.57 | 61.80 | 59.61 | 1.16 |
Vector method on RGB | 79.54 | 49.48 | 67.04 | 66.11 | 66.57 | 1.51 |
Vector method by using all channels on HSI | 92.00 | 73.09 | 73.10 | 92.98 | 80.76 | 5.42 |
Euclidean distance method on HSI | 79.61 | 64.87 | 66.78 | 95.36 | 78.69 | 6.44 |
SAM distance method on HSI | 80.46 | 52.96 | 59.92 | 82.01 | 69.25 | 10.69 |
Traditional NMS method on HSI | 82.13 | 46.66 | 70.10 | 58.25 | 63.63 | 4.72 |
Manual threshold method on HSI | 81.55 | 47.20 | 59.02 | 66.96 | 62.77 | 24.71 |
