Underwater pier component segmentation method based on deep learning and sonar imaging

Abstract

The invention provides an underwater pier component segmentation method based on deep learning and sonar imaging. The underwater pier component segmentation method comprises: using underwater side sonar equipment for obtaining a prepared underwater pier scanning picture; increasing the number of data sets by using an image enhancement method; marking the data set, carrying out polygon marking on the pier, the pile foundation and the riverbed by using different colors, and recording polygon vertex coordinates; dividing the data set into a training and verification set: establishing a Mask RCNNmodel in a deep learning semantic segmentation network, and performing training to obtain a training model; and controlling side sonar equipment to scan along the underwater pier part on the water surface to obtain a scanning picture, and performing automatic component segmentation on the underwater pier by utilizing the trained Mask RCNN model. The method is high in efficiency and low in cost, and compared with a traditional manual diving method and a sonar manual screening method, the method has the obvious advantages of automation, high efficiency and accuracy.

Description

technical field [0001] The invention belongs to the technical field of interaction between civil engineering and artificial intelligence, and in particular relates to a method for segmenting underwater pier components based on deep learning and sonar imaging. Background technique [0002] The bridge pier is the main load-bearing component of the bridge pier, and most of the load of the bridge structure is transmitted to the foundation through the pier. Any loss of bearing capacity of a bridge pier will lead to the overall instability and destruction of the bridge pier. Therefore, the safety of the bridge pier must be highly valued. The underwater part of the bridge pier has been subjected to harsh environments such as erosion and corrosion for a long time, which may cause defects such as defects, cracks, and exposed ribs or even damage underwater, which will seriously affect the service life and even the bearing capacity of the bridge. At present, the detection methods of u...

AI Technical Summary

Problems solved by technology

The underwater part of the bridge pier has been subjected to harsh environments such as erosion and corrosion for a long time, which may cause defects such as defects, cracks, and exposed ribs or even damage underwater, which will seriously affect the service life and even the bearing capacity of the bridge.

At present, the detection methods of underwater bridge piers are still based on artificial diving method and sonar equipment scanning method. The manual detection method is time-consuming, laborious, expensive, and has a low degree of automation. The scour results are very similar, it is difficult to distinguish directly, the efficiency of manual identification is low, and it is easy to misjudge and miss. Therefore, an automatic identification method for underwater pier diseases is urgently needed

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