Thermal infrared hyperspectral emissivity simulation method and system

A simulation method and emissivity technology, applied in the field of thermal infrared remote sensing, can solve problems such as high spectral resolution, high spatial resolution and high signal-to-noise ratio cannot be guaranteed at the same time, achieve high signal-to-noise ratio, high spatial resolution, improve Effect of Spectral Resolution

Active Publication Date: 2011-05-25
REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a thermal infrared hyperspectral emissivity spectral simulation method based on thermal airborne spectral imager (Thermal Airbome Spectrographic Imager, TASI) multi-spectral thermal infrared emissivity data for the spectral range of 8.0 ~ 14 μm And system, to overcom

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  • Thermal infrared hyperspectral emissivity simulation method and system
  • Thermal infrared hyperspectral emissivity simulation method and system
  • Thermal infrared hyperspectral emissivity simulation method and system

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[0054] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0055] figure 1 The flow chart of the simulation method of the embodiment of the present invention is shown. As shown in the figure, the thermal infrared hyperspectral emissivity simulation method of this embodiment includes the following processes:

[0056] In this embodiment, the thermal infrared multispectral sensor is a TASI sensor.

[0057] S1. Use the TASI sensor to obtain the TASI multi-spectral emissivity original image data, and perform temperature and emissivity separation on the data, thereby obtaining TASI low-dimensional multi-spectral emissivity image data;

[0058] figure 2 It is the spectrum of a pixel in the TASI multi-spectral emissivity original image data. Since the TASI original image has only ...

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Abstract

The invention discloses a thermal infrared hyperspectral emissivity simulation method and a system, and the method comprises the following steps: extracting ground object feature parameters of all picture elements in TASI (thermal airborne spectrographic imager) multi-spectral emissivity original image data by utilizing image ground object continuous spectral data, further constructing a reconstruction and transformation matrix by utilizing the ground object feature parameters, performing spectral reconstruction and simulating and getting thermal infrared hyperspectral information. With the adoption of the method and the system, the continuous thermal infrared hyperspectral information with higher spectral resolution can be simulated and obtained from the thermal infrared TASI multi-spectral emissivity data and other thermal infrared multi-spectral satellite remote sensing data, thereby getting the thermal infrared data with the high spectral resolution while meeting high spatial resolution and high signal-to-noise ratio of the original multi-spectral remote sensing data.

Description

Technical field [0001] The invention relates to the technical field of thermal infrared remote sensing, in particular to a thermal infrared hyperspectral emissivity simulation method and system. Background technique [0002] Thermal infrared remote sensing is a general term for remote sensing technology that detects the thermal radiation energy of an object through infrared sensitive elements and displays the target's radiation temperature or thermal field image. The observation spectrum ranges from 8.0 to 14 μm. At present, thermal infrared remote sensing has been widely used in farmland evapotranspiration, soil moisture and drought, urban thermal environment remote sensing, and forest fire monitoring. However, due to the limitation of sensor technology, the spatial resolution and spectral resolution of currently in-orbit thermal infrared multispectral sensors are both low. The application of thermal infrared remote sensing continuously puts forward higher requirements for ther...

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Application Information

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IPC IPC(8): G01S7/497G01S17/89G01J5/00
Inventor 张立福王晋年陈小平杨杭童庆禧
Owner REMOTE SENSING APPLIED INST CHINESE ACAD OF SCI
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