Table 10.
Comparison of different augmentation techniques in Experiment1: Normal, COVID-19, and typical viral pneumonia.
| Method | Performance Metrics (%) |
||||
|---|---|---|---|---|---|
| Sensitivity (Recall) | Precision (PPV) | F1-score | Accuracy | Average Rank | |
| No Augmentation | 96.12 (5) | 96.88 (5) | 96.48 (5) | 96.37 (5) | 5.0 |
| Brightness & Contrast | 98.48 (3) | 98.22 (4) | 98.35 (3) | 98.10 (4) | 3.5 |
| Cropping & Fliping | 98.50 (2) | 98.40 (2) | 98.45 (2) | 98.20 (2) | 2.0 |
| Gaussian & Salt and pepper noise | 98.34 (4) | 98.24 (3) | 98.29 (4) | 98.20 (2) | 3.25 |
| Rotation and Translation | 99.42 (1) | 99.47 (1) | 99.45 (1) | 99.39 (1) | 1.0 |
*Bold numbers indicate the best performance.