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Method for extracting optimized lichen coverage index of Antarctic peninsula

An extraction method and coverage technology, which is applied in the field of optimal lichen coverage index extraction in the Antarctic Peninsula, can solve the problems such as no index of lichen coverage, and achieve the effect of optimizing convenience

Active Publication Date: 2020-09-22
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

No index reflecting lichen coverage currently exists, and there is no large-scale high-resolution vegetation lichen index product for the Antarctic Peninsula region to indicate lichen distribution

Method used

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  • Method for extracting optimized lichen coverage index of Antarctic peninsula
  • Method for extracting optimized lichen coverage index of Antarctic peninsula
  • Method for extracting optimized lichen coverage index of Antarctic peninsula

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[0021] In order to make the purpose, technical solutions and advantages of the present invention clearer, 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. It should be understood that the specific The examples are only used to explain the present invention, not to limit the present invention. 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.

[0022] figure 1 It is a flow chart of the extraction method of the Antarctic Peninsula lichen coverage index of the present invention. The design of the optimized lichen coverage index (Optimized Lichen Coverage Index, OLCI) of the prese...

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Abstract

The invention discloses a method for extracting an optimized lichen coverage index of the Antarctic peninsula. The spectral characteristic of the reflection region based on the blue band-near coast band is the characteristic reflection region for differentiating the lichen different from other ground objects, the lichen coverage index is designed and optimized to reflect the coverage and distribution condition of the pioneer vegetation lichen in the Antarctic region. Due to the convenience of lichen coverage index calculation, compared with a traditional classification method, the large-area lichen coverage and distribution information of the Antarctic region can be rapidly extracted on the basis of remote sensing images, a high-resolution lichen index product is constructed and generated,and the method can be used for large-range dynamic change monitoring of Antarctic vegetation lichen.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular to a method for extracting the Antarctic Peninsula optimized lichen coverage index. Background technique [0002] Antarctic vegetation is sensitive to changes in the natural environment and ecosystem, and is an indicator of climate change. Lichens exist widely in the Antarctic environment, but the current methods for accurate extraction of lichen distribution are mostly limited to hard classification methods, spectral unmixing and NDVI detection methods. However, the hard classification method can only achieve more accurate results by combining the results of multiple classifiers. The spectral unmixing method is time-consuming and inefficient. Neither method can quickly obtain a wide range of lichen distribution. The traditional vegetation index NDVI often underestimates the existence of lichens, which limits the coverage of lichens extracted by NDVI. No index reflecting li...

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Application Information

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IPC IPC(8): G01N21/17G06K9/00
CPCG01N21/17G01N2021/1795G06V20/188
Inventor 孙晓慧吴文瑾李新武
Owner AEROSPACE INFORMATION RES INST CAS
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