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Method for quantitatively estimating uncertainty caused by geometric matching error

A matching error and uncertainty technology, applied in computing, image data processing, instruments, etc., can solve problems such as geometric registration errors, and achieve accurate results of uncertainty evaluation

Pending Publication Date: 2022-03-15
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at solving, at least to some extent, the problem of uncertainty caused by geometric registration errors

Method used

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  • Method for quantitatively estimating uncertainty caused by geometric matching error
  • Method for quantitatively estimating uncertainty caused by geometric matching error
  • Method for quantitatively estimating uncertainty caused by geometric matching error

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0026] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the ...

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Abstract

The invention discloses a method for quantitatively estimating uncertainty caused by geometric matching errors, which is characterized by comprising the following steps of: 1) selecting high-resolution remote sensing data subjected to geometric correction, performing projection conversion on the high-resolution remote sensing data, and converting the high-resolution remote sensing data into projection information of a product to be verified; 2) extracting a spatial range of a to-be-verified pixel as an initial position of the template; 3) simulating geometric deviation of the template in the cross-track direction and the along-track direction by taking the spatial resolution of the high-resolution data as a step length, and setting the maximum deviation as half of a to-be-verified pixel; and 4) extracting the high-resolution pixels contained in the template every time simulation is carried out, calculating the average value of the high-resolution pixels as the simulation value Ai of the scale of the pixel to be verified, and recording the average value of the simulation values of the scale of the pixel to be verified corresponding to all simulation conditions as the standard deviation epsilon gm1 of the simulation value, and the method can be used for carrying out quantitative estimation on uncertainty caused by geometric matching errors.

Description

technical field [0001] The present invention relates to the technical field of quantitatively estimating the uncertainty caused by geometric matching errors, and more specifically, relates to a method for quantitatively estimating the uncertainties caused by geometric matching errors. Background technique [0002] Earth observation technology has developed rapidly in recent years, and quantitative remote sensing products have been widely used in research fields such as the atmosphere, ocean, ecological environment, agriculture, forestry, and mining. However, there are uncertainties in quantitative remote sensing products due to factors such as sensor performance and working status, understanding of radiative transfer, inversion level, and algorithmic rationality and efficiency. This uncertainty will directly affect the research and development of special products and remote sensing monitoring for subsequent applications. Therefore, it is necessary to conduct an authenticity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T3/00
CPCG06T7/0002G06T2207/10032G06T3/14G06T5/80
Inventor 吴小丹闻建光肖青
Owner LANZHOU UNIVERSITY
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