Pavement crack identification and classification and area calculation method, system, equipment and terminal

The invention belongs to the technical field of pavement crack image recognition, and discloses a pavement crack recognition classification and area calculation method, system, device and terminal, and the method comprises the steps: taking a road crack picture shot by a road detection vehicle as a data set; training a target detection algorithm deep neural network model; cutting the identified road crack picture and performing semantic segmentation algorithm labeling on the road crack picture; training a convolutional neural network model and carrying out semantic segmentation on the cut crack picture; performing noise reduction processing on the image and synthesizing a binary image with an original size; and calculating the area of a crack region in the binary image. According to the method, the crack image is cut, the semantic segmentation algorithm is used for carrying out binary image extraction on the crack, and the region growing algorithm is used for carrying out noise reduction on the binary image,