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Water body extraction method, device, electronic equipment and storage medium for remote sensing images

A technology for extracting remote sensing images and water bodies, which is applied in the field of remote sensing images and can solve problems such as accuracy degradation and interference

Active Publication Date: 2021-01-05
BEIJING AEROSPACE HONGTU INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the embodiments of the present application is to provide a method, device, electronic equipment and storage medium for extracting water bodies from remote sensing images. The brightness index and shadow index are used to remove interference, thereby improving the accuracy of water body extraction results, and solving the problems caused by interference in existing methods. The problem of decreased accuracy

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  • Water body extraction method, device, electronic equipment and storage medium for remote sensing images
  • Water body extraction method, device, electronic equipment and storage medium for remote sensing images
  • Water body extraction method, device, electronic equipment and storage medium for remote sensing images

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Embodiment 1

[0077] Please see figure 1 , figure 1 It is a flow chart of a method for extracting water bodies from remote sensing images provided in the embodiment of the present application. Since the existing water body extraction methods cannot avoid the interference of ice and snow brightness, building land and mountain shadows, resulting in a decrease in extraction accuracy, the method provided in the embodiment of this application uses the water body index, brightness index and shadow index to remove the above interference, thereby improving extraction. precision. Such as figure 2 Shown is the program flow chart of the water body extraction method for remote sensing images. This method includes two parts: the initial division and the final division, that is, the preliminary water body extraction results are obtained through the calculation of the water body index, shadow index and brightness index and slope filtering, and then used The constructed water body discrimination mode...

Embodiment 2

[0151] The embodiment of the present application provides a remote sensing image water body extraction device, such as Figure 7 Shown is the structural block diagram of the water body extraction device for remote sensing images, which includes:

[0152] A preprocessing module 100, configured to acquire remote sensing images to be tested, and perform preprocessing on the remote sensing images to be tested;

[0153] The patch acquisition module 200 is configured to initially extract the water body area of ​​the preprocessed remote sensing image based on the water body index, brightness index and shadow index, so as to obtain a patch image;

[0154] The identification module 300 is used to identify the pattern image by using a pre-established water body discrimination model, so as to distinguish water body patterns and non-water body patterns;

[0155] The result obtaining module 400 is configured to obtain the water body extraction result according to the distinguishing result...

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Abstract

Embodiments of the present application provide a water body extraction method, device, electronic device, and storage medium for remote sensing images, which relate to the technical field of remote sensing images. The method includes acquiring a remote sensing image to be tested, and preprocessing the remote sensing image to be tested; and preliminarily extracting the water body region of the preprocessed remote sensing image to be tested based on a water body index, a brightness index and a shadow index, to obtain Spot image; use the pre-established water body discrimination model to identify the spot image to distinguish the water body spot and the non-water body spot; according to the discrimination result, obtain the water body extraction result, and use the brightness index and the shadow index to remove the interference, so as to The accuracy of the water body extraction result is improved, and the problem that the accuracy of the existing method is reduced due to interference is solved.

Description

technical field [0001] The present application relates to the field of remote sensing image technology, in particular, to a method, device, electronic equipment and storage medium for extracting water bodies from remote sensing images. Background technique [0002] The information of natural objects is complex, and there are phenomena of "same object with different spectrum" and "same spectrum with different object", especially in some areas where there is more snow and cloud coverage, and the color of the water body is different from the color of some mountains, cloud shadows, and bare soil in the image. In addition, in the case of water bodies in different phases, the color of the water bodies will also be different. [0003] The accuracy of the results obtained by the existing water body extraction methods is not high in some areas. Due to the interference of ice and snow brightness, building land and mountain shadow interference in these areas, it is easy to confuse it w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06T5/00G06T7/136G06T7/90
CPCG06T5/002G06T7/136G06T7/90G06T2207/20081G06T2207/20084G06T2207/30181G06V20/13
Inventor 李佳王宇翔
Owner BEIJING AEROSPACE HONGTU INFORMATION TECH
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