Method and device for extracting water body of satellite remote sensing image

A satellite remote sensing image and water body extraction technology, which is applied in the field of interpretation and classification of remote sensing images, to achieve the effect of improving the accuracy of water body extraction

Active Publication Date: 2013-01-02
CHINESE ACAD OF SURVEYING & MAPPING
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Problems solved by technology

Parametric classification algorithms such as maximum likelihood are no longer applicable when multiple sources of data are applied in the classification method

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  • Method and device for extracting water body of satellite remote sensing image
  • Method and device for extracting water body of satellite remote sensing image
  • Method and device for extracting water body of satellite remote sensing image

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] Embodiments of the present invention may consider selecting advanced non-parametric classifiers, such as neural networks, decision trees, evidence-based reasoning or knowledge-based methods. With the emergence of digital computers and the exploration of using computers to simulate human intelligence related processes, the development of data analysis technology such as "pattern recognition" has been accelerated. As a data mining technology, decision tree ...

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Abstract

The embodiment of the invention provides a method and a device for extracting a water body of a satellite remote sensing image. The method for extracting the water body of the satellite remote sensing image comprises the following steps: obtaining satellite remote sensing image data and utilizing a preset threshold in a preset decision-making tree to classify the water body information in the satellite remote sensing image data, thereby obtaining a water body extracting result after being classified. The device for extracting the water body of the satellite remote sensing image comprises an acquiring unit and a decision-making tree unit, wherein the acquiring unit is used for acquiring the satellite remote sensing image data, and the decision-making tree unit is used for utilizing the preset threshold in the preset decision-making tree to classify the water body information in the satellite remote sensing image data, thereby obtaining the water body extracting result after being classified. The method and device provided by the embodiment of the invention have the technical effect that the water body extraction precision of the satellite remote sensing image is increased.

Description

technical field [0001] The invention relates to the interpretation and classification of remote sensing images, in particular to a water extraction method and device for satellite remote sensing images. Background technique [0002] The interpretation and classification of satellite remote sensing images is one of the important fields of remote sensing technology research. It is an important means to obtain remote sensing information quickly and accurately, but it is also a complicated process. The development of remote sensing interpretation technology lags behind the development of remote sensing sensors. At present, the method of combining mathematical statistics and manual interpretation is time-consuming, labor-intensive, and inefficient. Its interpretation accuracy is limited by the level of interpreters and the understanding of regional geographical environment. The influence of many factors. Remote sensing images reflect complex, multi-level, multi-element geographi...

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Application Information

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IPC IPC(8): G06K9/62G06K9/46
Inventor 翟亮桑会勇杨刚王晓军张晓贺贾毅邱程锦李奇伟
Owner CHINESE ACAD OF SURVEYING & MAPPING
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