Tunnel surface defect classification method based on deep convolutional neural network

A deep convolution and neural network technology, applied in the field of computer vision and image analysis, can solve the problems of time-consuming and labor-intensive, relying on manual visual inspection, etc., and achieve the effect of improving defect detection efficiency, high recognition and classification accuracy

Active Publication Date: 2020-11-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a tunnel surface defect classification method based on a deep convolutional neural network to solve the problem that the traditional tunnel surface defect classification methods in the prior art mostly rely on manual visual inspection, which is very time-consuming and laborious.

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  • Tunnel surface defect classification method based on deep convolutional neural network
  • Tunnel surface defect classification method based on deep convolutional neural network
  • Tunnel surface defect classification method based on deep convolutional neural network

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Embodiment Construction

[0048] In order to further describe the technical solution of the present invention in detail, the workflow of the embodiment of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0049] The present invention provides a tunnel surface defect classification method based on a deep convolutional neural network, the specific flow chart of which is as follows figure 1 As shown, it specifically includes the following steps:

[0050] S1. Image acquisition:

[0051]Utilize the image acquisition device to automatically collect tunnel surface images, wherein the image acquisition device used includes a mobile car, 4 CCD cameras, lighting equipment, power supply, image acquisition card and computer, and the equipment is all located on the mobile car. The power supply provides electricity for the equipment; when the image is collected, the mobile car moves along the tunnel and at the same time starts the camera to shoot, and o...

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Abstract

The invention relates to a tunnel surface defect classification method based on a deep convolutional neural network. The tunnel surface defect classification method comprises the following specific steps of S1, image acquisition, automatically acquiring a tunnel surface image by utilizing an image acquisition device; S2, database construction, performing image preprocessing operation on the original image, and constructing a tunnel surface defect database in a classified manner; S3, image detection and classification, constructing a deep convolutional neural network, and carrying out tunnel surface defect detection and classification. Compared with a traditional method, automatic recognition and classification of tunnel surface defects can be achieved, labor cost is greatly reduced, and defect detection efficiency and classification accuracy are effectively improved.

Description

technical field [0001] The invention belongs to the field of computer vision and image analysis, and in particular relates to a tunnel surface defect classification method based on a deep convolutional neural network. Background technique [0002] In recent years, with the rapid development of my country's social economy, the status of transportation has become more and more important, and the construction of tunnels has also been intensified. However, with the increase of use time and the influence of the environment, various defects will inevitably appear on the surface of the tunnel. Accurate and timely classification of defects can assist relevant departments to carry out targeted defect remediation programs. However, most of the traditional tunnel surface defect classification methods rely on manual visual inspection, which is time-consuming and labor-intensive. Therefore, it is of great practical significance to develop an efficient classification method for surface ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06N3/04G06N3/08
CPCG06N3/084G06N3/045G06F18/2415
Inventor 汪俊徐莹莹李大伟易程
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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