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Results of five choices of the training object.
| Training Object | AP | AP50 | AP75 |
|---|---|---|---|
| (a) Original image | 37.6 | 56.1 | 41.1 |
| (b) Only one object | 37.0 | 53.6 | 42.4 |
| (c) Only small object (area ≤322) | 20.5 | 34.8 | 25.3 |
| (d) Only medium object (322 < area ≤ 962) | 32.2 | 51.9 | 36.1 |
| (e) Only large object (area > 962) | 37.3 | 56.3 | 41.0 |
