Application Research of the Laser and Digital Image Processing in Bridge Monitoring

Bridge is a key link in the traffic system, and many new methods have been studied to detect and monitorthe health of bridge, among which the method of bridge detection using the laser and laser image is a research hotpot. In this paper, the displacement measurement method of the deflection, cable support tower and anchor structure using the laser and image processing is studied, and the principle of the measurement iselaborated, among which the key algorithms are described. Successfully application in the practical bridge monitoring has testified that the methodcan meet the performanceneeds of the bridge structure above.