| SSD | YOLOv3 | Faster RCNN with FPN | RetinaNet | Ours |
Airplane | 59.5 | 72.2 | 54.0 | 53.3 | 80.0 |
Airport | 72.7 | 29.2 | 74.5 | 77.0 | 75.1 |
Baseball field | 72.4 | 74.0 | 63.3 | 69.3 | 78.1 |
Basketball court | 75.7 | 78.6 | 80.7 | 85.0 | 85.8 |
Bridge | 29.7 | 31.2 | 44.8 | 44.1 | 37.1 |
Chimney | 65.8 | 69.7 | 72.5 | 73.2 | 78.7 |
Dam | 56.6 | 26.9 | 60.0 | 62.4 | 57.0 |
Expressway service area | 63.5 | 48.6 | 75.6 | 78.6 | 71.8 |
Expressway toll station | 53.1 | 54.4 | 62.3 | 62.8 | 52.9 |
Golf course | 65.3 | 31.1 | 76.0 | 78.6 | 73.4 |
Ground track field | 68.6 | 61.1 | 76.8 | 76.6 | 78.5 |
Harbor | 49.4 | 44.9 | 46.4 | 49.9 | 48.1 |
Overpass | 48.1 | 49.7 | 57.2 | 59.6 | 57.0 |
Ship | 59.2 | 87.4 | 71.8 | 71.1 | 70.8 |
Stadium | 61.0 | 70.6 | 68.3 | 68.4 | 74.8 |
Storage tank | 46.6 | 68.7 | 53.8 | 45.8 | 61.6 |
Tennis court | 76.3 | 87.3 | 81.1 | 81.3 | 86.5 |
Train station | 55.1 | 29.4 | 59.5 | 55.2 | 54.1 |
Vehicle | 27.4 | 48.3 | 43.1 | 44.4 | 41.7 |
Wind mill | 65.7 | 78.7 | 81.2 | 85.5 | 79.2 |
mAP | 58.6 | 57.1 | 65.1 | 66.1 | 67.1 |