| Total Defects | Missed detections | False detections | |||||
| Threshold method | FNN method | RNN method | Threshold method | FNN method | RNN method | ||
| Data set 1 | 48 | 14 (29.1%) | 6 (12.5%) | 3 (6.25%) | 13 (27.0%) | 8 (16.6%) | 5 (10.4%) |
| Data set 2 | 60 | 16 (26.6 %) | 5 (8.3 %) | 3 (5.0 %) | 18 (30.0 %) | 9 (15.0 %) | 4 (6.6 %) |
| Data set 3 | 50 | 11 (22.0 %) | 4 (8.0 %) | 2 (4.0 %) | 14 (28.0 %) | 8 (16.0 %) | 3 (6.0 %) |
| Total | 158 | 41 (25.9 %) | 15 (9.4 %) | 8 (5.0 %) | 45 (28.4 %) | 25 (15.8 %) | 12 (7.5 %) |