A Crack Identification Method for Concrete Structures Using Improved U-Net Convolutional Neural Networks

Table 8

Comparison of the averages of the evaluation indicators.

Item	U-net	Segnet	Improved U-net
Average precision of the test set	0.727	0.536	0.844
Average recall of the test set	0.912	0.876	0.915
Average mean_IoU value of the test set	0.801	0.751	0.830