Vehicle-mounted type automatic pavement damage recognition device based on image processing and application method

Abstract

The invention discloses a vehicle-mounted type automatic pavement damage recognition device based on image processing. The device comprises an image acquisition module, a data processing module, a power module and a GPS (global positioning system) signal transceiving device, wherein the image acquisition module comprises line-scan digital cameras, a rotary encoder, an LED illumination unit and a facility control console; the data processing module comprises image capture cards, a GPS data pre-processing unit and an industrial personal computer. According to pulse signals generated by the rotary encoder, the line-scan digital camera is triggered to perform shooting, the precision of a pavement image is high, and the adverse situation that shooting cannot be triggered under the shading conditions of tunnels, trees and the like when the GPS is adopted to trigger shooting is avoided; the double line-scan digital cameras are adopted to shoot left and right pavements simultaneously, so that the splicing complexity of pavement images is reduced, the pavement images can be easy to splice continuously, and fusion of left and right pavement images can be realized. GPS positioning information is used for assisting the rotary encoder in mileage correction, GPS information of corresponding pavement is stored, and accordingly, inquiry of follow-up damage pavements and positioning of geographical locations are facilitated.

Description

technical field [0001] The invention relates to road damage detection technology, in particular to a vehicle-mounted automatic identification device for road damage based on image processing and a method for using it. Background technique [0002] With the development of my country's economy, all walks of life have a huge demand for transportation. A good road traffic environment has become an important factor to promote the development of the national economy. With the increasing mileage of national roads, in order to ensure that the roads that have been built can be well maintained, maximize their value, and ensure the safety of people's lives and property when traveling, it is necessary to pay attention to roads that are frequently used and have been in disrepair for a long time. Do a road test. Pavement damage detection, as one of various road detection and evaluation indicators, has an important impact on road safety. If the road damage can be detected and detected i...

AI Technical Summary

Problems solved by technology

The key technologies of road surface damage detection are basically the same, but the images collected by the area array CCD camera need to be stitched not only in the horizontal direction of the road, but also in the longitudinal direction of the road. Compared with the latter, it is not as accurate as the latter, and the area array camera also needs to deal with unfavorable factors such as imaging distortion

At present, most of the detection devices are pre-detection vehicles to collect road images outdoors, and then processed by software or indoor manual operation. They are in a semi-automatic state, and the detection accuracy is still closely related to human factors.

Images