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Multi-algorithm pavement internal crack detection device capable of balancing light intensity

A detection device, a technology for internal cracks, applied in measurement devices, computer parts, optical testing flaws/defects, etc., can solve the problems of simple and single algorithm, reduced detection accuracy, etc., to achieve high detection efficiency, accurate analysis, and labor saving physical effect

Inactive Publication Date: 2021-05-14
CHINA JILIANG UNIV
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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention designs a multi-algorithm road surface internal crack detection device that can balance the light intensity, so as to solve the problem that the algorithm of the road detection device proposed in the above-mentioned background technology is simple and single, and the intensity of the road crack and the unevenness of light intensity and the complexity of the background, the detection accuracy is greatly reduced for the problem

Method used

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  • Multi-algorithm pavement internal crack detection device capable of balancing light intensity
  • Multi-algorithm pavement internal crack detection device capable of balancing light intensity
  • Multi-algorithm pavement internal crack detection device capable of balancing light intensity

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Embodiment Construction

[0011] The detection flow chart is as figure 2 shown.

[0012] Light intensity balance: Due to the influence of changing environmental light intensity conditions, mutual occlusion between objects during the detection process, and other factors, the light intensity of the scene is often uneven. The main performance is that the light in the edge area of ​​the pavement crack image is too strong, while the light illumination in the middle area is not enough, which leads to the failure to display or even cover up some important details in the pavement crack image. Therefore, an adaptive image correction algorithm based on multi-scale Gaussian function light intensity unevenness is used to balance the light intensity of the collected pavement crack images. The algorithm steps are as follows:

[0013] Step1: Use the multi-scale Gaussian function to extract the light intensity component of the scene.

[0014] Step2: Construct a second Euler integral.

[0015] Step3: Use the distri...

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Abstract

The invention discloses a multi-algorithm pavement internal crack detection device capable of balancing light intensity. The multi-algorithm pavement internal crack detection device is composed of a device body 1, a driving motor 2, a movable pulley 3, a small roller 4, a threaded rod 5, a control rod 6, an image acquisition module 7, a damping spring 8, a sliding block 9, an upper computer 10, a display screen 11, a bearing seat 12, a telescopic rod 13, a fixed block 14, a power supply module 15 and a machine base 16. Pictures are collected through a picture collection device, then light intensity correction processing is carried out on the obtained pavement crack images, the influence degree of light intensity non-uniformity on middle crack recognition is reduced, light intensity balance, image enhancement, image layering feature extraction, crack depth extraction and other link processing are carried out on the collected crack images through multiple algorithms, important crack details in the image are protected, operation is convenient, detection efficiency is high, a large amount of manpower and material resources are saved, analysis is accurate, and high superiority and universality are achieved.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a multi-algorithm road surface internal crack detection device capable of balancing light intensity. Background technique [0002] The road has been exposed to the natural environment. After being opened to traffic for a period of time, it is affected by wind, sun, rain and overloading. Cracks will inevitably appear. As the cracks expand, it will inevitably endanger driving safety. Once the crack develops to be easily found by human eyes, it will often cause more serious consequences. Therefore, accurate and effective detection of cracks has always been an important research topic in the field of industry and engineering. However, manual flaw detection is very time-consuming. Therefore, an automatic detection method for road cracks is needed to advance this process. [0003] Patent CN201910316047.1 once proposed a road crack detection device and detection method base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/01G01N21/88G06K9/46G06N3/04G06N3/08G06T7/00
CPCG01N21/01G01N21/8851G06T7/0004G06N3/08G01N2021/8887G06T2207/20032G06T2207/10052G06T2207/20081G06T2207/20221G06T2207/30132G06V10/44G06N3/048G06N3/045
Inventor 徐玮鑫陈亮黄帅金尚忠张淑琴
Owner CHINA JILIANG UNIV
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