Bridge crack detection method

A detection method and crack technology, applied in image data processing, instrumentation, calculation, etc., can solve problems such as low efficiency, poor mobility, and high risk
CN110378879AActive Publication Date: 2019-10-25HANGZHOU DIANZI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU DIANZI UNIV
Publication Date
2019-10-25

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Abstract

The invention discloses a bridge crack detection method. Due to the fact that manual marking has certain subjectivity, the pavement crack detection precision depends on experience knowledge of experts, and experience lacks objectivity in quantitative analysis. The method comprises the following steps: 1, collecting images of a detected bridge floor one by one to obtain a bridge floor image set; 2,splicing images; 3, detecting crack; 4, extracting crack parameter. According to the invention, the image acquisition and processing technology replaces human eyes to complete automatic nondestructive detection of the bridge crack, and has very important practical significance for research of the bridge crack detection technology in a complex terrain environment. On one hand, the construction safety is enhanced, and on the other hand, the operation maneuverability and flexibility are improved. According to the invention, fidelity splicing of multiple groups of bridge deck images is realized,the image splicing precision and efficiency are improved, a working foundation is laid for subsequent bridge crack image detection, and a technical reference is provided for image splicing detection in other fields.
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Description

technical field

[0001] The invention belongs to the technical field of image detection, and in particular relates to a bridge crack detection method. Background technique

[0002] Building bridges and improving transportation have effectively promoted the development of our country's national economy and society. As an important carrier connecting two large span points, the internal stress generated by the long-term sun, rain and load operation will also be transmitted to some weak parts along the bridge structure, which makes the surface of the structure prone to exist. Creation and development of cracks. The damage degree of surface cracks with different orientations to the bridge structure is also different. If the extension direction of the surface cracks is perpendicular to the bearing surface of the structure, the damage will be the greatest.

[0003] According to engineering practice and theoretical analysis, most bridges in service work with cracks, and the potenti...

Claims

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