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A Crack Extraction Method in Complicated Pavement Background

An extraction method and background technology, applied in image analysis, image enhancement, instruments, etc., can solve the problems of background interference, influence crack extraction, background interference, etc., to overcome complex background interference, enhance applicability, and quickly and effectively extract. Effect

Active Publication Date: 2021-05-04
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in the actual highway situation, the pavement cracks themselves are irregular and uneven, and the pavement images containing cracks are often accompanied by complex background interference, such as white lines of traffic signs, stains, shadows, and road asphalt itself. Noise caused by particles, these seriously affect the extraction of cracks
At the same time, the resolution and size of the collected pavement images are large, and when the cracks in the image are small, they are more easily affected by background interference

Method used

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  • A Crack Extraction Method in Complicated Pavement Background
  • A Crack Extraction Method in Complicated Pavement Background
  • A Crack Extraction Method in Complicated Pavement Background

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Embodiment Construction

[0067] The present invention provides a method for extracting cracks in complex pavement backgrounds. Firstly, the pavement image is processed based on morphology to remove darker and brighter stains and white line areas of traffic signs, so as to avoid such interference areas due to clear edges. During the extraction process, it was mistaken for cracks; then, the pavement cracks were enhanced, and the crack features were highlighted to prepare for the crack extraction; finally, the minimum path method based on block features was used to eliminate the residual noise point area in the image based on the continuity of cracks , to achieve the final extraction of cracks. Compared with the traditional method, the present invention can extract road surface cracks in a complex background environment, and overcomes the interference of factors including traffic sign white lines and stains.

[0068] see figure 1 , a method for extracting cracks under a complex pavement background in th...

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Abstract

The invention discloses a crack extraction method under a complex road background. The road image is processed based on morphology to remove the dark and bright stains and the white line area of ​​the traffic sign; then the road crack is enhanced to highlight the crack characteristics. ; Finally, the minimum path method based on block feature is adopted, and the residual noise point area in the image is removed based on the continuity of the crack to realize the final extraction of the crack. The invention can overcome complex background interference, realize fast and effective extraction of road cracks, and can assist in road maintenance and the like.

Description

technical field [0001] The invention belongs to the technical field of pavement detection, and in particular relates to a method for extracting cracks under the complex pavement background. Background technique [0002] The development of highways marks the degree of construction of the country's basic economic facilities. Due to the population and geographical distribution characteristics of our country, highways play an important role in national life, which makes highway maintenance particularly important. Effective detection of pavement cracks can detect the initial stage of pavement disease in time and carry out maintenance. The traditional manual detection method is not only time-consuming and labor-intensive, but also the detection effect is not ideal, and it cannot be quantified and counted. With the development of imaging technology and computer technology, image-based automatic crack detection technology has gradually developed, and some scholars have carried out...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T5/00G06T7/12G06T7/194
CPCG06T7/0002G06T7/12G06T7/194G06T2207/20036G06T2207/20024G06T5/94G06T5/70
Inventor 刘雪超
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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