A method and device for detecting water quality
A water body and quality technology, applied in the field of image processing, can solve the problems of high labor cost, time-consuming and laborious detection process, etc.
Inactive Publication Date: 2019-03-12
SATELLITE ENVIRONMENT CENT MINIST OF ENVIRONMENTAL PROTECTION
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Problems solved by technology
Existing urban water quality detection methods rely on manual on-site sampling to complete. It is necessary to collect water samples on the spot, and then analyze the water quality of the water samples to determine the quality of the water body. The detection process is time-consuming and laborious, and the labor cost is high.
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[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0052] The embodiment of the invention discloses a method for detecting the quality of a water body, see figure 1 As shown, the method includes:
[0053] S101. Acquire a remote sensing image of a set geographic area;
[0054] Specifically, the remote sensing image of the geographic area set above refers to a satellite remote sensing image of a certain geographic area to be studied obtained by a satellite sensor. The satellite remote sensing...
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The invention brings forward a method and a device for detecting water quality. The method for detecting water quality comprises the following steps: obtaining a remote sensing image of a set geographic area; carrying out radiometric calibration treatment and atmospheric correction treatment on the remote sensing image to obtain a pretreated remote sensing image; extracting a water area image from the pretreated remote sensing image; and determining water quality of the water area according to spectral slope of each pixel in the water area image. According to the above technical scheme, by analyzing the spectral slope of the water-area remote sensing image in the set geographic area, water quality of the water area is determined. The analysis data come from the satellite remote sensing images without the need of manual on-site acquisition of water samples. Thus, manpower cost can be saved, and efficiency is higher.
Description
Technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for detecting the quality of water bodies. Background technique [0002] With the rapid development of urbanization in my country, the deterioration of the quality of exposed surface water has become a common environmental problem in many cities in my country. Testing and remediating the quality of exposed water on the surface is an important means to improve the urban environment. [0003] At present, my country's main method of testing the quality of urban exposed water is to conduct comprehensive testing through data collection, field investigation and field monitoring, combined with some sensory indicators, chromaticity indicators, and chemical substance content indicators to confirm the water quality. Existing urban water quality detection methods rely on manual on-site sampling to complete. It is necessary to collect water samples on the spot,...
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IPC IPC(8): G01N21/17
CPCG01N21/17G01N2021/1793
Inventor 王桥朱利吴传庆周亚明孟斌王晨
Owner SATELLITE ENVIRONMENT CENT MINIST OF ENVIRONMENTAL PROTECTION