Portable asphalt pavement disease detection method and device based on machine vision

Abstract

The invention relates to a portable asphalt pavement disease detection method and device based on machine vision. The method comprises the steps of: 1) collecting pavement disease pictures of a lane next to a road with a camera, and recording the height, angle and focal distance of the camera; 2) based on the height, angle and focal distance of the camera in the step 1), collecting a calibrating picture of a calibrating plate for simulating the lane indoors with the camera; 3) calibrating the lane according to the calibrating picture to obtain calibrating information; 4) correcting the pavement disease pictures according to the internal reference of the camera and the gesture of the camera; and 5) drawing the diseases on the corrected pavement disease pictures to obtain disease parameters. Compared with the prior art, the method and device provided by the invention fill the blank of conventional pavement disease detection and large multifunctional vehicle disease detection by using current pavement detection methods and instruments, and have the characteristics of not sealing the lane or blocking the traffic flow, guaranteeing the safety of workers, reducing the field operating amount and improving the detection precision and efficiency.

Description

technical field [0001] The invention relates to the field of asphalt pavement disease detection, in particular to a machine vision-based portable asphalt pavement disease detection method and device. Background technique [0002] With the gradual improvement of my country's road network, the work in the road field is shifting from new construction to maintenance, especially the increase in the total mileage of high-grade asphalt roads, which makes the maintenance tasks facing our country very difficult. It has been found in practice that the asphalt roads in our country are often seriously damaged after a short period of use, and we have to take measures for major and medium repairs or even reconstruction, which is very costly. about the current situation. It is gratifying that the concept of paying attention to daily maintenance work, reducing major and medium repairs, reducing the impact on the social environment, and reducing costs has been increasingly recognized by mai...

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