An Approach to Improve SSD through Skip Connection of Multiscale Feature Maps

Table 4

The effect of different fusion strategies on model performance.

Model	Data	Pretrained model	Fusion model	BN	mAP (%)
SKIPSSD	07 + 12	VGGNet	Concat	Used after all convolution layers of the fusion module	77.9
SKIPSSD	07 + 12	VGGNet	Eltsum	×	78.0
SKIPSSD	07 + 12	VGGNet	Eltsum	Used after all convolution layers of the fusion module	78.3
SKIPSSD	07 + 12	VGGNet	Eltsum	Used only after the eltsum function	78.4