Method and device for extracting mineral composition remote sensing information based on characteristic index

A feature index and information extraction technology, applied in the measurement of color/spectral characteristics, etc., can solve problems such as errors and inaccuracies

Active Publication Date: 2012-10-10
INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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Problems solved by technology

Therefore, when the fluctuation of band reflectance or DN value in the remote sensing information is small, the results obtained by directly using the band reflectance and DN value to invert the mineral composition content are often inaccurate, and sometimes even cause large errors

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  • Method and device for extracting mineral composition remote sensing information based on characteristic index
  • Method and device for extracting mineral composition remote sensing information based on characteristic index
  • Method and device for extracting mineral composition remote sensing information based on characteristic index

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Embodiment Construction

[0085] Before the technical scheme of the present invention is described in detail, the noun inspection used is explained:

[0086] The DN value (Digital Number) is the brightness value of the remote sensing image pixel, and the gray value of the recorded ground features. Unitless, it is an integer value, and the value is related to the radiation resolution of the sensor, the emissivity of ground objects, the transmittance of the atmosphere, and the scattering rate.

[0087] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0088] figure 1 An example of the mineral composition remote sensing information extraction method based on the characteristic index of the present invention is shown.

[0089] First of all, the preprocessing step of the remote sensing image is necessary to process the original data of the remote sensing image, so as to simplify the subsequent data processing steps. For exam...

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Abstract

The invention provides a method and a device for extracting mineral composition remote sensing information based on a characteristic index. The method comprises the following steps of: A, preprocessing a remote sensing image; B, calculating the characteristic index of a pixel of the preprocessed remote sensing image; C, building a regression equation; D, calculating values of a, b, c, d and e in the regression equation according to an actual sample; and E, calculating the mineral composition content in the pixel according to the regression equation obtained in the step C. The method and the device can be applied to mineral exploration; and effects of saving time, saving labors and saving resources are achieved during mineral exploration.

Description

[0001] This invention is supported by the National Natural Science Foundation of China (No. 41102205), the basic business fee project of central public welfare scientific research institutes (No. K1207), the geological survey project (No. 1212011120994), and the national major basic research project (No.: 2007CB411406-06), and the National Science and Technology Support Project (No. 2006BAB07B00-7-2) are jointly funded. technical field [0002] The invention relates to a method and device for analyzing geological remote sensing information, in particular to a method and device for analyzing mineral composition content in remote sensing information. Background technique [0003] Mineral resources are important strategic resources that affect national security and national strategic layout. With the continuation of mining time, the difficulty of prospecting continues to increase, and there is an urgent need for innovation in prospecting and exploration technology. Geochemistr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25
Inventor 姚佛军耿新霞杨建民
Owner INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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