An Improved Nondestructive Semantic Segmentation Method for Concrete Dam Surface Crack Images with High Resolution

Table 1

Different backbones and architectures and their FLOPs.

Layer name	Output size	ResNetv2-50	ResNetv2-50 s	DeepLabv3-DUC ResNetv2-50	DeepLabv3-DUC+ ResNetv2-50 s
conv1	112 × 112	7 × 7, 64, stride 2 3 × 3 max pool, stride 2
conv2_x	56 × 56
conv3_x	28 × 28
conv4_x	14 × 14
conv5_x	7 × 7
	1 × 1	Average pool, 2-d fc, softmax
conv5_d	14 × 14
conv6_d	14 × 14
	1 × 1
conv7_d	14 × 14
	14 × 14
DUC	224 × 224			Reshape, 14 × 14 × 512 to 224 × 224 × 2, softmax
FLOPs		3.87 × 10^9 [33]	1.04×109	8.72 × 10^9	3.08 × 10^9