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Tunnel water leakage area detection and recognition method based on infrared and visible light image fusion

A technology of region detection and image fusion, applied in the field of image processing, can solve the problems of loss of detailed information, high false detection rate, data interference, etc.

Active Publication Date: 2020-11-06
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem of high false detection rate in single-spectrum data acquisition and identification.
Although visible light images can collect a large amount of details and texture information of the target, due to the harsh lighting conditions inside the tunnel, there is a lot of interference in the collected data.
Although the infrared image can use the thermal radiation information of the target to clearly mark the position of the target, it has a great impact on the recognition of the target due to the loss of a large amount of detailed information of the target.

Method used

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  • Tunnel water leakage area detection and recognition method based on infrared and visible light image fusion
  • Tunnel water leakage area detection and recognition method based on infrared and visible light image fusion
  • Tunnel water leakage area detection and recognition method based on infrared and visible light image fusion

Examples

Experimental program
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Embodiment 1

[0090] In this embodiment, a method for detecting and identifying water leakage areas in tunnels based on fusion of infrared and visible light images specifically includes the following steps:

[0091] Step 1) using an industrial camera to collect infrared and visible light images inside the area to be measured;

[0092] Step 2) Preprocessing the images collected in step 1) to obtain initial infrared and visible light images; simultaneously registering the infrared and visible light images;

[0093] Step 3) using deep learning technology to fuse the infrared and visible light images obtained after registration in step 2) to form a fusion image;

[0094] Step 4) Carry out target detection of leaking water and elimination of epoxy resin abnormalities on the fusion image obtained in step 3), so as to realize the detection and identification of leaking water inside the tunnel;

[0095] Step 5) Use the inertial navigation system to realize the off-line positioning mark of the leak...

Embodiment 2

[0097] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0098] In this example, see Figure 1-Figure 4 , a method for detecting and identifying tunnel water seepage areas based on fusion of infrared and visible light images, which specifically includes the following steps:

[0099] Step 1) using an industrial camera to collect infrared and visible light images inside the area to be measured;

[0100] Step 2) Preprocessing the images collected in step 1) to obtain initial infrared and visible light images; simultaneously registering the infrared and visible light images; the specific implementation steps are as follows:

[0101] Step 2.1) segment the infrared and visible light video data collected from step 1) to obtain the required infrared and visible light images;

[0102] Step 2.2) Perform preprocessing such as noise reduction, equalization, and color inversion on the original infrared and visible light images;

[0103] St...

Embodiment 3

[0167] In this example, if figure 1 As shown, a method for detecting and identifying water seepage areas in tunnels based on fusion of infrared and visible light images includes the following steps:

[0168] a. Use an intelligent detection car equipped with an infrared and visible light industrial camera and an inertial navigation system to collect tunnel data; the tunnel for data collection is a fire-fighting passage and a cable passage in a highway tunnel. These two types of underground passages have poor lighting conditions and are difficult for people to enter. characteristics, so it is selected as the test area;

[0169] b. Segment the collected video frame by frame, select the appropriate frame image as the original image data; at the same time, preprocess the data; first, perform preliminary segmentation on the infrared and visible light images and resize the two types of images, and then take the The pre-adjusted infrared and visible light images are sent to the image...

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Abstract

The invention discloses a tunnel water leakage area detection and recognition method based on infrared and visible light image fusion. The method comprises the following steps: firstly, collecting infrared and visible light data in a tunnel of an area to be detected by utilizing an industrial camera; preprocessing the acquired data to obtain initial infrared and visible light image data, and registering the infrared and visible light images; fusing the infrared and visible light data obtained after registration by using a deep learning technology; carrying out target detection of water leakageand elimination of oxygen resin abnormity on the obtained fusion image to realize detection and recognition of water leakage in the tunnel; and finally, an inertial navigation system is used for achieving the function of positioning and marking the water leakage area in the tunnel where an external positioning system cannot be used. The method effectively solves the problem of interference of poor illumination conditions in the tunnel and abnormal epoxy resin on water leakage detection, has the advantages of high precision and high adaptability, and provides a basis for backtracking and rechecking of diseases in the tunnel.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method for detecting and identifying water leakage areas of tunnels based on fusion of infrared and visible light images, which is often used in highway tunnels, underground utility galleries, and the like. Background technique [0002] With the development of underground projects such as highway tunnels, subway tunnels, and comprehensive underground pipe galleries in China, tunnel water leakage, as a common disease in tunnels, has attracted more and more attention. If the leaking water damage area is not repaired in time, the steel bars, bolts and other metal structures inside the tunnel will be seriously corroded, resulting in cracking and peeling of concrete and other related civil structures, which will eventually cause serious damage to the tunnel operation. [0003] At present, the detection of water leakage in tunnels can be mainly divided into tradi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/33G06T7/10G06T5/40G06T5/00G06N3/08G06N3/04G06K9/62
CPCG06T7/337G06T7/10G06T5/40G06N3/08G06T2207/10048G06T2207/20221G06T2207/30204G06T2207/20081G06T2207/20084G06V10/751G06N3/045G06F18/2415G06T5/70Y02E10/20
Inventor 高新闻沈卓胡珉喻刚周丽
Owner SHANGHAI UNIV
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