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Remote sensing extraction method and device for forest and grass collocation information

An extraction method and remote sensing technology, applied in the field of remote sensing, can solve the problems of foreign objects in the same spectrum, large differences, large differences in topography and landforms, etc., and achieve the effect of accurate ecosystem management

Active Publication Date: 2022-02-25
CHINESE ACAD OF METEOROLOGICAL SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The problem with this is that the characterization of forest and grass on optical remote sensing images is likely to cause "same object with different spectrum" and "same spectrum with different object", resulting in a large difference between the extracted woodland, grassland and forest-grass mixed area and the actual situation , which leads to great uncertainty in the extraction results of forest-grass collocation information; second, for many arid and semi-arid regions, the topography differs greatly, and the shadows produced by terrain undulations and the similarity of forest-grass spectra may lead to the extraction of Uncertainty of forest-grass collocation information

Method used

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  • Remote sensing extraction method and device for forest and grass collocation information
  • Remote sensing extraction method and device for forest and grass collocation information
  • Remote sensing extraction method and device for forest and grass collocation information

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. 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.

[0042] figure 1 It is a schematic flow chart of a remote sensing extraction method for forest and grass collocation information provided in the embodiment of the present invention, such as figure 1 As shown, the method includes:

[0043] S1. Obtain optical remote sensing images, microwave images of the target area, and time-series optical remote sensing images of vegetation growth peri...

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Abstract

The invention provides a remote sensing extraction method and device for forest and grass collocation information. By combining optical remote sensing images, microwave images and time-series optical remote sensing images, the precise extraction of forest and grass collocation information in the target area can be realized, so as to realize more accurate ecosystem management.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular to a remote sensing extraction method and device for forest and grass collocation information. Background technique [0002] For arid and semi-arid areas with relatively fragile ecological environments or important ecological function areas, it is necessary to identify fine information of different forest and grass combinations in order to realize the optimization of ecosystem management and protection in order to carry out ecosystem monitoring, assessment, diagnosis and restoration. [0003] Remote sensing technology has the characteristics of multi-time, multi-space and multi-spectrum, and can effectively obtain relevant information about land cover and changes. Optical remote sensing can retrieve vegetation structure information, such as leaf area index, vegetation coverage, etc. Microwave remote sensing can identify the geometric information of the surface, and comprehens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/136G06V20/10G06V10/764G06K9/62
CPCG06T7/11G06T7/136G06T2207/10032G06F18/24
Inventor 周广胜王树东汲玉河
Owner CHINESE ACAD OF METEOROLOGICAL SCI