Research Article

Pavement Crack Detection and Segmentation Method Based on Improved Deep Learning Fusion Model

Table 3

U-Net convolution feature layers and feature map outputs.

VGG16 layer (type)Resnet layer (type)Output shape

block1_conv2leaky_re_lu_1(512, 512, 64)
block2_conv2leaky_re_lu_4(256, 256, 128)
block3_conv3leaky_re_lu_9(128, 128, 256)
block4_conv3leaky_re_lu_26(64, 64, 512)
dropout_1leaky_re_lu_43(32, 32, 1024)