Table 2.
Counting performances of the selected models trained with Adam optimizer, 416 pixels of input image dimension and batches of 32 images.
| Video-1 | Video-2 | Video-3 | Video-4 | Video-5 | Total | |
|---|---|---|---|---|---|---|
| Ground truth | 4 | 6 | 36 | 40 | 23 | 109 |
| YOLOv8n | ||||||
| Output | 4 | 4 | 36 | 22 | 23 | 89 |
| True positives | 3 | 4 | 32 | 19 | 20 | 78 |
| False positives | 1 | 0 | 4 | 3 | 3 | 11 |
| False negatives | 1 | 2 | 4 | 21 | 3 | 31 |
| Correct count rate (%) | 75.00 | 66.66 | 88.89 | 47.50 | 86.96 | 71.56 |
| F-score | 0.75 | 0.80 | 0.89 | 0.61 | 0.87 | 0.79 |
| YOLOv8s | ||||||
| Output | 3 | 4 | 36 | 39 | 24 | 106 |
| True positives | 3 | 4 | 33 | 31 | 22 | 93 |
| False positives | 0 | 0 | 3 | 8 | 2 | 13 |
| False negatives | 1 | 2 | 3 | 9 | 1 | 16 |
| Correct count rate (%) | 75.00 | 66.67 | 91.67 | 77.50 | 95.65 | 85.32 |
| F-score | 0.86 | 0.80 | 0.92 | 0.78 | 0.94 | 0.87 |
| YOLOv8m | ||||||
| Output | 3 | 4 | 36 | 33 | 22 | 98 |
| True positives | 3 | 4 | 32 | 27 | 21 | 87 |
| False positives | 0 | 0 | 4 | 6 | 1 | 11 |
| False negatives | 1 | 2 | 4 | 13 | 2 | 22 |
| Correct count rate (%) | 75.00 | 66.67 | 88.89 | 67.50 | 91.30 | 79.82 |
| F-score | 0.86 | 0.80 | 0.89 | 0.74 | 0.93 | 0.84 |
| YOLOv7-Tiny | ||||||
| Output | 4 | 5 | 41 | 40 | 24 | 114 |
| True positives | 3 | 4 | 34 | 30 | 20 | 91 |
| False positives | 1 | 1 | 7 | 10 | 4 | 23 |
| False negatives | 1 | 2 | 2 | 10 | 3 | 18 |
| Correct count rate (%) | 75.00 | 66.67 | 94.44 | 75.00 | 86.96 | 83.49 |
| F-score | 0.75 | 0.73 | 0.88 | 0.75 | 0.85 | 0.82 |