A fusion method and system of remote sensing images and geochemistry

Abstract

The invention discloses a remote sensing image and geochemical fusion method and system. The method includes: firstly, performing minimum noise transformation on the remote sensing image to obtain multi-dimensional image data; performing point-plane transformation on the geochemical image to obtain geochemical raster image data, that is, the geochemical image becomes raster data; and then matching the multidimensional image data with the geochemical raster image data to obtain similar image data; and using the geochemical raster image data to replace the similar image data in the multidimensional image data to obtain a replaced multidimensional Finally, the minimum noise inverse transformation is performed on the replaced multi-dimensional image data to obtain the fused remote sensing chemical image, which realizes the fusion of geochemical and remote sensing data.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a fusion method and system of remote sensing images and geochemistry. Background technique [0002] Remote sensing images are raster data, while geochemistry is lattice data. Generally, the fusion of remote sensing images and geochemistry cannot be well realized, only the fusion of forms, such as the conventional main classification fusion method, color transformation fusion method, fusion The image of the is very poorly recognizable. [0003] Remote sensing geochemistry is to use remote sensing to invert element abundance characteristics, because the absorption characteristics of minerals are mainly the absorption characteristics formed by the vibration of molecular bonds or the absorption characteristics formed by electronic transitions. The main absorption characteristics (mainly referring to the wavelength of the absorption valley) are related to molecular vibration and elect...

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Problems solved by technology

[0018] Existing technologies are mainly aimed at remote sensing to invert geochemistry or use high-resolution bands to fuse low-resolution bands, which cannot truly reflect the geochemical data itself. It is the geochemistry revealed by remote sensing, and the remote sensing data itself The fusion also does not reflect the geochemistry, the two are out of touch

Mainly manifested in (1) geochemistry is not as large as the amount of information reflected by remote sensing data itself; (2) remote sensing data is not as accurate as geochemical data

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