Visible light and thermal infrared fusion temperature information enhancement method
A technology of temperature information and visible light, which is applied in the field of remote sensing image processing, can solve problems such as poor fusion effect, achieve the effects of easy interpretation and processing, enhanced temperature information, and improved fusion effect
Pending Publication Date: 2021-12-28
武汉九天高分遥感技术有限公司
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[0005] The present invention proposes a temperature information enhancement method for the fusion of visible light and thermal infrared, which can effectively utilize photothermal composite remote sensing images, and enhance temperature information in visible light, which solves the problem of insufficient simultaneous use of visible light and thermal infrared in the prior art The technical problem of poor fusion effect caused by the information
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[0031] The inventor of the present application found through a lot of research and practice that since the spectral range of the thermal infrared load of my country's Gaofen No. 4 is 3.5-4.1 μm, the spectral response characteristics of different spectral bands are completely different, especially in the thermal infrared spectrum. , which has the ability to detect temperature information and can reflect the temperature of ground objects, so information in thermal infrared can be used. Different loads on the same platform can generally be imaged at the same time, so the temperature information of ground objects can be observed at the same time as visible light observation, which is of great significance to the subdivision of ground objects. For example, the appearance of two oil storage tanks on optical images Consistent, but the temperature of the full oil storage tank is higher than that of the empty oil storage tank, so after adding thermal infrared information, it is possible ...
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The invention provides a visible light and thermal infrared fusion temperature information enhancement method. The method comprises theo following steps: firstly, matching a visible light image with a thermal infrared image based on geographic position constraint; then registering the visible light image and the thermal infrared image; and performing visible light image temperature information enhancement fusion. The visible light and thermal infrared information can be utilized at the same time, the thermal infrared information can be fused into the visible light image, the temperature information is enhanced, and the fusion effect is improved. Subsequent interpretation and processing are facilitated, and finer classification and identification of ground features are realized.
Description
technical field [0001] The invention relates to the field of remote sensing image processing, in particular to a method for enhancing temperature information by combining visible light and thermal infrared. Background technique [0002] With the rapid development of remote sensing technology, the imaging payloads carried by the same satellite platform are becoming more and more abundant. In addition to the traditional visible light and near-infrared payloads, more and more other types of payloads are carried on the same platform. Especially the satellites supported by our country’s high-resolution project, for example, Gaofen-6 is equipped with a full-spectrum wide-band payload in addition to visible light and near-infrared payloads, and Gaofen-4 is equipped with thermal infrared imaging in addition to visible light and near-infrared payloads. load. In the future, more satellites carrying visible light near-infrared payloads and thermal imaging payloads will be launched to ...
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IPC IPC(8): G06K9/62G06T7/33
CPCG06T7/33G06T2207/10048G06T2207/10032G06F18/25
Inventor 王密谢广奇
Owner 武汉九天高分遥感技术有限公司