ALFPN: Adaptive Learning Feature Pyramid Network for Small Object Detection

Table 2

Ablation study of other modules in ALFPN based on ResNet-101.

No.	SSF	ATT	DIL	AP
1				47.2
2	✓			47.5
3		✓		47.3
4			✓	47.9
5	✓	✓		48.2
6	✓		✓	48.1
7		✓	✓	48.3
8	✓	✓		48.7

SSF is the subpixel convolution; ATT is the attention mechanism; DIL is the dilated convolution.