Pavement drainage monitoring and evaluating method and system based on image processing

An image processing and expert system technology, applied in image data processing, image analysis, instruments, etc., can solve problems such as inaccurate data, labor-intensive, and inability to achieve real-time monitoring and evaluation, and achieve the effect of improving evaluation efficiency and effectively denoising

Active Publication Date: 2020-05-15
SOUTH CHINA UNIV OF TECH +1
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Problems solved by technology

If the pavement drainage is detected and evaluated manually, it is labor-intensive and has certain subjectivity, resulting in inaccurate data, and the effect of real-time monitoring and evaluation cannot be achieved. Therefore, it is necessary to study an automatic monitoring and evaluation system for pavement drainage. Significance

Method used

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  • Pavement drainage monitoring and evaluating method and system based on image processing
  • Pavement drainage monitoring and evaluating method and system based on image processing
  • Pavement drainage monitoring and evaluating method and system based on image processing

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Embodiment

[0083] Such as figure 1 , figure 2 As shown, this embodiment provides a road surface drainage monitoring and evaluation system based on image processing, including: high-definition camera 1, sprinkler 2, sensor 3, lighting module 4, height adjustment device 5, central processing unit, database and wheeled Mobile platform 6, wherein the central processing unit is the control center of the entire system, responsible for coordinating and processing data and information between modules;

[0084] Such as image 3 As shown, the high-definition camera adopts a bi-telecentric lens, which can correct the parallax of ordinary industrial lenses, so that within a certain range of object distance, the magnification of the obtained image will not change with the change of the object distance. The main function is limited Obtain the required high-quality and high-resolution images from the road surface drainage process in time intervals;

[0085] The lighting module adopts bi-telecentric...

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Abstract

The invention discloses a pavement drainage monitoring and evaluating method and system based on image processing. The method comprises the steps: enabling a double-telecentric lens of a camera to collect image data information in the pavement drainage process; carrying out edge detection preprocessing on the image data information by adopting shear wave transformation; adopting a particle size determination method to extract and calculate bulges of the pavement in the drainage process; constructing evaluation indexes to evaluate the pavement drainage quality to obtain a pavement drainage quality evaluation result; adopting a Bayesian expert system classifier to classify the pavement drainage quality evaluation results, and classifying pavements; and verifying the evaluation performance ofthe Bayesian expert system classifier by adopting a chaotic matrix to obtain the evaluation performance of the pavement drainage process. According to the method, denoising can be effectively carriedout, the edge can be completely detected, and the evaluation efficiency of pavement drainage performance detection is improved.

Description

technical field [0001] The invention relates to the technical field of drainage monitoring and evaluation, in particular to a road surface drainage monitoring and evaluation method and system based on image processing. Background technique [0002] Water is one of the main causes of road damage. How to effectively remove water within the subgrade range to reduce road damage, prolong the service life of the road, and ensure driving safety is a very important issue in road design. Among them, pavement drainage is an important part of highway drainage. If the rainwater on the road surface cannot be removed quickly and effectively, it will cause the rainwater to stay on the road surface for too long, and the amount of infiltrated water will increase. Under the action of the driving load, the asphalt mixture will be destroyed, causing cracks to appear, and then pits will be formed; Cement concrete slabs produce mud pumping, misalignment and slab breakage. In severe cases, the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G06T7/62G06T7/64
CPCG06T7/62G06T7/64G06V20/10G06F18/24155
Inventor 吴伟林余孝源何伟张浪文谢巍汤茂俊
Owner SOUTH CHINA UNIV OF TECH
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