Outcrop residual coal burning center accurate detection method based on high-resolution remote sensing image

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...

AI Technical Summary

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

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