Region | Relu | Swish |
| 0.51 | 0.42 |
| 0.47 | 0.39 |
| 0.49 | 0.43 |
| 0.48 | 0.44 |
| 0.50 | 0.43 |
| 0.49 | 0.44 |
MR-CNN | 0.45 | 0.35 |