Pavement crack detection system based on image and detection method thereof

Abstract

The invention provides a pavement crack detection system based on image, which comprises a control module, an image acquisition module and a data processing module, wherein the control module can be used for generating a trigger signal according to the received GPS location information and outputting the trigger signal into the image acquisition module; the image acquisition module is used for acquiring image of road surface and road signs according to the received trigger signal so as to acquire the image of the road surface and the road signs, and outputting the image of the road surface and the road signs into the data processing module; and the data processing module is used for mosaicking first digital image to obtain continuous digital image of the road surface, utilizing an image identification method for indentifying the crack in the continuous digital image of the road surface to obtain first digital image containing the crack, the GPS location information and second digital image, and determining the position information of the pavement crack according to the GPS location information and the second digital image for outputting. The invention also provided a pavement crack detection method based on the image. Therefore, the system and the method can improve the accuracy and the efficiency of detection.

Description

technical field [0001] The invention relates to detection technology, in particular to an image-based pavement crack detection system and detection method. Background technique [0002] In recent years, with the continuous enhancement of my country's economic strength, highway construction has achieved rapid development in my country, and highway transportation has become the lifeblood of my country's economic development. Good road traffic is premised and based on good road quality, and ensuring road quality is a major event related to the vital interests of people and even the entire country. However, cracks appear on the pavement of the road due to the damage of bad weather, frequent use or aging of the road, which seriously affects the driving safety and the service life of the road. If the pavement cracks can be found and identified quickly and in time, and corresponding repair measures can be taken, potential safety hazards can be eliminated. [0003] In the prior ar...

AI Technical Summary

Problems solved by technology

Existing systems that use cameras to detect road surface cracks require an expensive rangefinder 10 to control the camera 11 to take road images, and the detection accuracy and accuracy are proportional to the accuracy of the rangefinder 10; The road surface images acquired by area array cameras often need to be stitched together to obtain continuous road surface images. The image stitching technology is difficult, and it is difficult to realize real-time image processing; the system also requires inspectors to identify and locate road cracks, and the detection is accurate. degree is not high

[0007] To sum up, the existing pavement crack detection methods are not accurate enough, and the detection efficiency is low

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