Image Edge Detection Method in Bridge Structure Safety Assessment

Bridge transportation plays a decisive role in China's transportation industry. It can be said that it is the lifeline of transportation, and the bearing capacity of bridges is also the key. Based on the in-depth study of the application of mathematical morphology in edge detection, this paper proposes an image edge detection method in bridge structure safety assessment. It uses this method to extract image edges. Secondly, the scale of morphological structure elements is adjusted to synthesize the edge features of each scale, and an ideal image edge is obtained in the presence of noise. The comparative experimental study on crack detection of in-service bridges under outdoor conditions shows that the system has high engineering application value for long-distance, non-destructive testing of minor bridge damage. At the same time, the final research conclusion also shows that when using digital image edge detection technology for bridge structure safety assessment, it will help to improve the speed of bridge online detection and reduce the cost of detection, which is of great significance to promote the development of bridge detection technology.