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Method and device for processing unmanned plane optical remote sensing image data

A technology for remote sensing image and data processing, which is applied in measurement devices, meteorology, scientific instruments, etc., to achieve the effects of high precision, simple operation and strong practicability

Inactive Publication Date: 2012-10-17
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

However, inferring the corresponding surface temperature and emissivity from the radiation emitted by the ground objects detected by the sensors is very tricky
Among them, the surface temperature and channel specific emissivity are parameters to be obtained, but the thermal radiation observed by N channels corresponds to N+1 unknowns (N channel specific emissivity and 1 surface temperature), resulting in surface temperature and specific emissivity The inversion of emissivity becomes an underdetermined problem

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  • Method and device for processing unmanned plane optical remote sensing image data
  • Method and device for processing unmanned plane optical remote sensing image data
  • Method and device for processing unmanned plane optical remote sensing image data

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Embodiment Construction

[0045] The UAV optical remote sensing image data processing method provided by the present invention includes: a data preprocessing module, an atmospheric water vapor inversion module, a surface reflectivity inversion module, and a surface temperature inversion module.

[0046] 1. Data preprocessing module

[0047] (1) Relative radiation calibration

[0048] Relative radiation calibration is to adjust the response value of each detector element, eliminate the influence of offset value, adjust the output value of each detector element to the same reference, so that each detector element produces the same output for the same input value:

[0049] Y=(X-μ i )σ r / σ i +μ r (1)

[0050] In the formula, X and Y are the gray value of the image before and after transformation; μ i is the average value of the image gray value in column i; σ i is the standard deviation of the gray value of the i-th column image; μ r is the average value of the gray value of the entire image;...

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Abstract

The invention discloses a method for processing unmanned plane optical remote sensing image data. The method comprises the following steps of: A) preprocessing unmanned plane optical remote sensing image data; B) carrying out atmosphere moisture inversion on the unmanned plane optical remote sensing image data so as to obtain an atmosphere moisture content product; C) carrying out ground surface reflectance inversion on the unmanned plane optical remote sensing image data by using the atmosphere moisture content product in the step B; and carrying out ground surface temperature inversion on the unmanned plane optical remote sensing image data by using the atmosphere moisture content product in the step B and a ground surface reflectance product in the step C, so as to obtain a ground surface temperature product.

Description

technical field [0001] The invention relates to a remote sensing image data processing method, in particular to a UAV optical remote sensing image data processing method. [0002] The invention also relates to a device for implementing the above method. Background technique [0003] Since the development of civil space earth observation technology in the 1960s, remote sensing payload technology is developing towards high resolution and practical application. As a new type of remote sensing data acquisition method, UAV remote sensing has the advantages of long battery life, real-time image transmission, detection of high-risk areas, low cost, high resolution, and flexible maneuvering. It is a powerful supplement to satellite remote sensing and manned aerial remote sensing. , can be widely used in the fields of national ecological environment protection, mineral resource exploration, marine environment monitoring, land use investigation and land resources monitoring. Therefo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/02
Inventor 唐伯惠段四波吴骅
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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