Water body information extraction method and device, electronic equipment and storage medium
A water body information and extraction method technology, applied in character and pattern recognition, scene recognition, computer components, etc., can solve the problem of low accuracy of water body information, achieve the effect of improving the accuracy and efficiency of water body extraction
Inactive Publication Date: 2022-02-08
成都国星宇航科技股份有限公司
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[0004] In view of this, the purpose of the embodiment of the present application is to provide a water body information extraction method, device, electronic equipment and storage medium to improve the low accuracy of water body information extraction existing in the prior art
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[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments of the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the embodiments of the present application.
[0062] At present, when using satellite remote sensing data to extract water body information in the region, there are mainly methods for extracting water bodies using optical remote sensing data, such as ground object classification and water body magnification index method. The ground feature classification method is to use the spectral characteristics of different ground features to extract water body...
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The invention provides a water body information extraction method and device, electronic equipment and a storage medium, and relates to the technical field of water body monitoring. The method comprises the following steps: preprocessing acquired SAR satellite data of a target area to obtain a corresponding backscattering coefficient, wherein the backscattering coefficient comprises scattering coefficients in two polarization directions; constructing a water body amplification index model based on the backscattering coefficient; determining water body amplification index data based on a water body amplification index model; determining an initial water body area of the target area according to the water body amplification index data; removing a false water body region in the initial water body region based on data information corresponding to the SAR satellite data, and determining a water body region in the target region. According to the method, the water body information is extracted without being influenced by weather, false areas in the extracted water body areas can be removed, the water body extraction efficiency and the precision of the extracted water body areas are effectively improved, and various requirements of users are met.
Description
technical field [0001] The present application relates to the technical field of water body monitoring, in particular, to a water body information extraction method, device, electronic equipment and storage medium. Background technique [0002] In the prior art, when satellite remote sensing data is used to extract water body information in a region, optical remote sensing data and radar data are generally used to extract water body information. [0003] However, the selection of optical remote sensing data for water body information extraction has the disadvantage of being greatly affected by weather. When optical satellites acquire surface optical remote sensing data, affected by the weather, the obtained optical remote sensing data cannot reflect surface information and cannot be used for water body information extraction. Information extraction; using radar data to extract water body information is costly and depends on the work experience of interpreters, and is not sui...
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IPC IPC(8): G06V20/13G06V10/26
Inventor 谭真赵宏杰陆川孙明江
Owner 成都国星宇航科技股份有限公司