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A method for accurate detection of outcrop residual coal combustion center based on high-resolution remote sensing images

A combustion center and remote sensing image technology, applied in measurement devices, analytical materials, color/spectral property measurement, etc., can solve the problems of lack of accurate detection methods, inability to detect the burning center of outcrop residual coal, etc., to achieve rich data sources, Increase spatial resolution and avoid costly effects

Active Publication Date: 2021-03-02
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Therefore, these remote sensing techniques can detect coal fires or coal spontaneous combustion areas, but cannot detect outcrop residual coal combustion centers
[0004] Therefore, there is still a lack of accurate detection methods for the burning center of residual coal in outcrops

Method used

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  • A method for accurate detection of outcrop residual coal combustion center based on high-resolution remote sensing images
  • A method for accurate detection of outcrop residual coal combustion center based on high-resolution remote sensing images
  • A method for accurate detection of outcrop residual coal combustion center based on high-resolution remote sensing images

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Embodiment Construction

[0034] The following is attached figure 1 Embodiments will be described. The invention is based on high-resolution remote sensing images, fully utilizes the feature that the gray values ​​of the remote sensing images of the outcrop residual coal combustion center and the background features in the research area are inconsistent, gradually narrows the detection range, and finally automatically detects the outcrop residual coal combustion center from the background. Specific steps are as follows:

[0035] Step 1. Select the area with outcropping residual coal burning as the research area, for example, it is known that there is outcropping residual coal burning in a certain mining area or forest land of a certain village. The area within the boundary of the mining area and the boundary of the village and woodland is the research area. Obtain high-resolution optical remote sensing images of the area. Images can be purchased from remote sensing data companies or downloaded for f...

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Abstract

The invention discloses an outcrop residual coal burning center accurate detection method based on a high-resolution remote sensing image. Firstly, the area of outcrop residual coal burning is selected as the study area, the high-resolution optical remote sensing image of the area is obtained and then the high-resolution optical remote sensing image is preprocessed by radiometric calibration, atmospheric correction and geometric correction so as to obtain the preprocessed image; the histogram equalization method is applied to enhance the preprocessed image of the study area and the enhanced image of the study area is obtained; the background iterative search method is utilized to perform coarse extraction on the outcrop residual coal burning center in the enhanced image and the coarsely extracted information of the outcrop residual coal burning center is obtained; and fine extraction is performed on the coarsely extracted information of the outcrop residual coal burning center according to the information characteristic judgment method of the outcrop residual coal burning center so as to obtain the fine extracted information of the outcrop residual coal burning center. The method can provide direct support for environmental monitoring of coal spontaneous combustion, development and management of outcrop coal and precise ecological restoration.

Description

technical field [0001] The invention relates to the technical field of mine ecological environment monitoring, in particular to a method for accurately detecting the burning center of outcrop residual coal based on high-resolution remote sensing images. Background technique [0002] Outcrop residual coal combustion is mainly caused by incomplete mining and spontaneous combustion of outcrop coal. It occurs on the surface of the land, with a spatial scale of several to tens of square meters. It has the characteristics of small scale, scattered distribution, and large environmental impact. To implement environmental governance and ecological restoration projects, it is necessary to detect the location of the outcrop residual coal combustion center. Regarding the extraction of coal fire combustion centers, there are currently geological exploration methods, such as the invention patent "Method for Discriminating Underground Coal Fire Combustion Center", invention patent publicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/31G01N21/17G06K9/00
Inventor 杨永均朱笑笑张绍良侯湖平陈浮王新
Owner CHINA UNIV OF MINING & TECH
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