Method and device for separating temperature and emissivity

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: 2021-12-03
AEROSPACE INFORMATION RES INST CAS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Method and device for separating temperature and emissivity
  • Method and device for separating temperature and emissivity
  • Method and device for separating temperature and emissivity

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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

Embodiments of the present invention provide a method and device for separating temperature and emissivity based on dual networks. Wherein, the method includes: inputting the thermal infrared radiation spectrum and atmospheric measurement parameters of the target object into the first network model, and outputting the atmospheric downgoing radiation; inputting the atmospheric downgoing radiation and the thermal infrared radiation spectrum into the second network model, and outputting the target surface object The temperature and emissivity of ; wherein, the first network model is obtained by training according to the atmospheric lookup table; the second network model is obtained by training according to the sample remote sensing data and its corresponding temperature and emissivity. The temperature and emissivity separation method and device provided by the embodiments of the present invention estimate atmospheric downlink radiation through the first network model, and separate temperature and emissivity through the second network model, which can improve the accuracy of temperature and emissivity separation.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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