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Panchromatic/multispectral remote sensing image and hyperspectral remote sensing image fusion method

A hyperspectral remote sensing and hyperspectral image technology, applied in color/spectral characteristic measurement, material analysis through optical means, measurement devices, etc., can solve the problem that panchromatic/multispectral-hyperspectral images cannot reasonably balance space and spectral resolution rate and other issues

Active Publication Date: 2021-09-14
HARBIN INST OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to provide a panchromatic / multispectral remote sensing image and a hyperspectral remote sensing image in order to overcome the problem that the results of the existing panchromatic / multispectral-hyperspectral image fusion cannot reasonably balance space and spectral resolution. fusion method

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  • Panchromatic/multispectral remote sensing image and hyperspectral remote sensing image fusion method

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Embodiment Construction

[0059] The purpose of this embodiment is to solve the problem that the existing panchromatic / multispectral-hyperspectral image fusion space and spectrum cannot be optimally compromised, and propose a panchromatic / multispectral-hyperspectral remote sensing image fusion method based on subspace regularization , the subspace-based method uses matrix decomposition technology to model panchromatic / multispectral images and hyperspectral images. Under the constraints of reasonable regularization terms, good fusion results can be obtained. The implementation steps are as follows:

[0060] Step 1: Perform VCA (Vertex Component Analysis) vertex component analysis on the input hyperspectrum, extract the endmember matrix, and convert it to the subspace;

[0061] Step 2: Build a variational model using the input panchromatic / multispectral, hyperspectral images and endmember matrix;

[0062] Step 3: use ADMM (Alternating Direction Method of Multipliers) iterative optimization to obtain the ...

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Abstract

The invention discloses a panchromatic / multispectral remote sensing image and hyperspectral remote sensing image fusion method, relates to the field of remote sensing image processing, and aims to solve the problem that the existing panchromatic / multispectral-hyperspectral image fusion result cannot reasonably balance space and spectral resolution. The method comprises the following specific steps: step 1, extracting an end member matrix of a hyperspectral remote sensing image; step 2, establishing a variational model by using the panchromatic / multispectral remote sensing image, the hyperspectral remote sensing image and the end member matrix; and step 3, carrying out iterative calculation on the variation model by using an alternating direction multiplier method to obtain a fused image of the panchromatic / multispectral remote sensing image and the hyperspectral remote sensing image.

Description

technical field [0001] The invention relates to the field of remote sensing image processing. Background technique [0002] With the launch of several optical Earth observation satellites in recent years, the data captured by them can be used for various tasks such as environmental monitoring, geography, agriculture, and land survey, with great potential for future development. In my country, the major project of high-resolution earth observation system is one of the 16 major scientific and technological projects, which was approved to start implementation in 2010. Up to now, Gaofen-1, Gaofen-2, Gaofen-5, Gaofen-10, Gaofen-9 02 and 03 satellites have been successfully launched. [0003] However, in the design of optical remote sensing systems, there is always a trade-off between spatial and spectral resolution due to the limited incident energy. Thus, optical systems can provide panchromatic, multispectral images with high spatial resolution but fewer spectral bands, or hy...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G01N21/25G01N21/17
CPCG01N21/25G01N2021/1793G06F18/2133G06F18/24155G06F18/25
Inventor 谷延锋朱静
Owner HARBIN INST OF TECH
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