Table 2 Detection accuracies of the proposed method according to the number of features for the Columbia gray dataset (unit: %)
Number of features | TPR | TNR | ACC |
|---|---|---|---|
144 | 95.3 | 95.2 | 95.3 |
120 | 94.3 | 97.5 | 95.8 |
100 | 95.5 | 97.0 | 96.2 |
80 | 95.3 | 96.7 | 96.0 |
70 | 94.5 | 94.4 | 94.5 |
50 | 93.6 | 93.5 | 93.5 |