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Universal high-resolution remote sensing image fusion method

A remote sensing image fusion, high-resolution technology, applied in image enhancement, image data processing, instruments, etc., can solve the problem of inconsistent spectral range between panchromatic and multi-spectral bands

Inactive Publication Date: 2013-07-03
CENT FOR EARTH OBSERVATION & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

At the same time, a solution is proposed for the inconsistency between panchromatic and multispectral band spectral ranges

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  • Universal high-resolution remote sensing image fusion method
  • Universal high-resolution remote sensing image fusion method
  • Universal high-resolution remote sensing image fusion method

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Embodiment Construction

[0040] The steps of fusion algorithm of the present invention are as follows:

[0041] The first step is to calculate the panchromatic image Pan simulated by the multispectral band image based on the radiance radiance from the relationship between the spectral range of the panchromatic image and the spectral range of the multispectral image and formula 5-7. HSyn ;

[0042] The second step is to correct Pan with the spectral range ratio HSyn , to compensate for the difference in spectral range between panchromatic and multispectral data, namely:

[0043] Assume:

[0044] p = d λ pan d λmul - - - ( 8 )

[0045] Among them, p is the image spectral range ratio, is the spectral range of the panchromatic band, d λmul is the spectral range of the m...

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Abstract

The invention discloses a universal high-resolution remote sensing image fusion method. Based on panchromatic high-resolution image simulation by radiance by utilizing multi-spectrum images, the relation between information quantity characteristics for simulating panchromatic images and original panchromatic images is established through linear regression analysis, and a solution is provided aiming at the condition that wave spectrum ranges of panchromatic and multi-spectrum wave bands are not consistent.

Description

technical field [0001] The invention belongs to the technical field of remote sensing, and relates to the processing and application of remote sensing data. Background technique [0002] Remote sensing image fusion can integrate or integrate complementary information in multiple source images, use complementary data to improve the availability of image information, and increase the reliability of interpretation of research objects. As a comprehensive processing and analysis technology of remote sensing information, remote sensing image data fusion is one of the hot research topics in the field of remote sensing. Data fusion can be performed at the following three levels: 1) Pixel-Level Fusion; 2) Feature-level Fusion; 3) Decision-level Fusion. Pixel level fusion is the most mature level among the three levels, and various fusion algorithms have been formed. [0003] The synthetic variable ratio method is a remote sensing image fusion algorithm based on the pixel layer. Th...

Claims

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Application Information

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IPC IPC(8): G06T5/50
Inventor 何国金柳文祎张兆明
Owner CENT FOR EARTH OBSERVATION & DIGITAL EARTH CHINESE ACADEMY OF SCI
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