Pixel-Level Recognition of Pavement Distresses Based on U-Net

Table 4

PA values of different models using images of different sizes.

Model	Input image size (pixel)	PA
		Detecting distress with six types	Detecting with or without distress
ResNet-34	256 × 256	0.66103	0.97336
	512 × 512	0.62716	0.97113
ResNet-50	256 × 256	0.44953	0.95772