Table 2 DC characterization results in terms of PPV, NPV, sensitivity, specificity, accuracy and AUC without and with PCA method. P-value was obtained using student’s t-test between ground truth data and predicted results (PPV: positive predictive value, NPV: negative predictive value, and AUC: area under the ROC curve)
Mask Size | PPV (%) | NPV (%) | Sensitivity (%) | Specificity (%) | Accuracy (%) | AUC |
|---|---|---|---|---|---|---|
3 × 3 | 86.7 ± 0.1 | 82.5 ± 0.1 | 81.6 ± 0.1 | 87.3 ± 0.1 | 84.5 ± 0.1 | 0.846 ± 0.002 |
7 × 7 | 85.4 ± 0.1 | 91.8 ± 0.1 | 92.5 ± 0.1 | 84.1 ± 0.1 | 88.3 ± 0.1 | 0.886 ± 0.001 |
9 × 9 | 89.1 ± 0.1 | 84.0 ± 0.1 | 82.9 ± 0.1 | 89.8 ± 0.1 | 86.3 ± 0.1 | 0.865 ± 0.001 |
11 × 11 | 87.1 ± 0.1 | 87.4 ± 0.1 | 87.6 ± 0.1 | 87.0 ± 0.1 | 87.3 ± 0.1 | 0.873 ± 0.001 |
5 × 5 | 86.0 ± 0.1†| 91.2 ± 0.1*†ψ | 92.8 ± 0.1*†ψ | 85.1 ± 0.1 | 88.4 ± 0.1*†| 0.886 ± 0.001*†|