Temperature and emissivity separation method and device

A separation method and emissivity technology, applied in the field of remote sensing, can solve the problem of low separation accuracy and achieve the effect of improving accuracy

Active Publication Date: 2020-09-25
AEROSPACE INFORMATION RES INST CAS +1
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  • Abstract
  • Description
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Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for separating temperature and emissivity to solve or at least partly solve the defect of low separation accuracy existing in the prior art

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  • Temperature and emissivity separation method and device
  • Temperature and emissivity separation method and device
  • Temperature and emissivity separation method and device

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments 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 drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] In order to overcome the above-mentioned problems in the prior art, the embodiment of the present invention provides a method and device for separating temperature and emissivity. ) estimation and separation of temperature and emissivity to improve the accuracy of separation of temperature and emissivity.

[0039] figure 1 It is a schemat...

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Abstract

The embodiment of the invention provides a temperature and emissivity separation method and device based on double networks. The method comprises the following steps: inputting a thermal infrared radiation spectrum and atmospheric measurement parameters of a target ground object into a first network model, and outputting atmospheric downlink radiation; inputting the spectrums of the atmospheric downlink radiation and the thermal infrared radiation into a second network model, and outputting the temperature and the emissivity of the target ground object, wherein the first network model is obtained by training according to an atmosphere lookup table,and the second network model is obtained by training according to the sample remote sensing data and the corresponding temperature and emissivity. According to the temperature and emissivity separation method and device provided by the embodiment of the invention, atmospheric downlink radiation is estimated through the first network model, temperature and emissivity separation is carried out through the second network model, and the temperature and emissivity separation precision can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of remote sensing, and more specifically, to a method and device for separating temperature and emissivity. Background technique [0002] Land surface temperature and emissivity each have an important role, especially land surface temperature is a key parameter in the study of global change. The surface temperature and emissivity jointly affect the thermal infrared signal obtained by the remote sensing sensor, and the effects of the two need to be separated and obtained separately. This is the temperature and emissivity separation (TES) technology in the thermal infrared field. [0003] TES technology generally refers to the use of thermal infrared hyperspectral or multi-spectral observations to simultaneously obtain temperature and emissivity spectra, that is, the narrow TES method. The core problem of the TES method is: when the emissivity is completely unknown, N bands observe N dat...

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Application Information

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IPC IPC(8): G01J5/00G06N3/08
CPCG01J5/007G06N3/08
Inventor 杨杭尹忠科
Owner AEROSPACE INFORMATION RES INST CAS
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