Method and system for detecting pavement crack diseases

A technology of pavement cracks and detection methods, which is applied in the direction of roads, roads, road repairs, etc., can solve problems such as failure to extract cracks, affect normal driving safety, improve detection efficiency and detection accuracy, and achieve automatic interpretation and automatic intelligent processing Effect

Inactive Publication Date: 2017-09-26
TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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Problems solved by technology

The main problem of using manual direct observation and interpretation comparison is that it cannot perform real-time detection and affects normal driving safety, and the detection efficiency and detection accuracy need to be improved.
[0003] The crack identification method based on the crack two-dimensional image is based on the difference between the illumination characteristics of cracks under certain lighting conditions and the road surface itself, but this is not the essential characteristic of cracks, because the principle of two-dimensional image sensing cannot be completely overcome , the interference factors such as lighting condit

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  • Method and system for detecting pavement crack diseases
  • Method and system for detecting pavement crack diseases

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[0025] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0026] In this disclosure, various aspects of the present invention are described with reference to the accompanying drawings, in which many illustrated embodiments are shown. The embodiments of the present disclosure are not necessarily intended to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not Limited to any implementation. In addition, some aspects disclosed in the present invention can be used alone or in any appropriate combination with other aspects disclosed in the present invention.

[0027] Combine figure 1 , figure 2 As shown, the present invention ...

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Abstract

The invention provides a method for detecting pavement crack diseases. The method includes steps of emitting laser light beams towards lanes by a laser generator and forming series bent marked lines on to-be-detected pavements; acquiring the series bent marked lines by a laser marked line image acquisition device under the control of image acquisition control signals on the basis of preset acquisition cycles to obtain light spot images and carrying out low-pass filter processing on the light spot images by an information processing system to obtain low-pass filtered continuous cross-section numerical images; carrying out full-spectrum fidelity processing on the light spot images obtained by the information processing system to obtain full-spectrum cross-section numerical images; carrying out difference on the full-spectrum cross-section numerical images obtained by means of full-spectrum fidelity processing and the low-pass filtered continuous cross-section numerical images obtained by means of low-pass filter processing to obtain pulse elevation numerical images of the pavement crack diseases. Filter parameters for low-pass filter are related to light spots formed by the series bent marked lines. Filter parameters for the full-spectrum fidelity processing are related to the light spots formed by the series bent marked lines. The method has the advantage that the work efficiency can be improved.

Description

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Claims

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Application Information

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IPC IPC(8): E01C23/01
CPCE01C23/01
Inventor 贺安之贺宁贺斌
Owner TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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