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Image region stray light eliminating device based on moment matching and method thereof

A technology of image area and stray light, applied in the field of remote sensing image processing

Active Publication Date: 2014-12-10
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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  • Abstract
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  • Claims
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Problems solved by technology

The influence of stray light that cannot be removed by radiation correction in medium and high-resolution remote sensing images cannot be solved

Method used

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  • Image region stray light eliminating device based on moment matching and method thereof
  • Image region stray light eliminating device based on moment matching and method thereof

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Embodiment Construction

[0021] The basic idea of ​​the present invention is: to provide a device and method for eliminating stray light in an image area based on moment matching, aiming at remote sensing images of uniform ground objects affected by stray light in the inner area of ​​the image, according to the statistical law of image grayscale information, the whole The gray level change trend of the image, obtain the reference mean and variance of the image moment matching calculation, and perform standard moment matching processing, solve the problem of stray light elimination in the image domain of medium and high-resolution earth observation satellite images, and improve the radiation quality of remote sensing image processing results.

[0022] The present invention will be described in further detail below in conjunction with accompanying drawing, as figure 2 As shown, a device for eliminating stray light in an image area based on moment matching includes an image information statistics module ...

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Abstract

Provided are an image region stray light eliminating device based on moment matching and a method thereof. The device acquires a reference mean value and a reference variance calculated through image moment matching according to the statistic law of the image grey information and the grey change trend of the whole image and conducts standard moment matching. By means of the method, effects of stray light can be well eliminated aiming at even surface feature remote sensing images affected by the stray light in the image inside area, and even transition of the image in the grey list direction is maintained. By means of the method, the image can be restored effectively, the image quality is improved, and the algorithm efficiency is high.

Description

technical field [0001] The invention relates to a device for eliminating stray light in an image area based on moment matching and a method thereof, and belongs to the field of remote sensing image processing. Background technique [0002] Due to the influence of stray light, the gray information of the image is changed, especially the influence on the local area of ​​the image, which brings difficulties to the interpretation and application of satellite images. It is necessary to analyze and eliminate the stray light of satellite images, so as to ensure the imaging quality of satellite optical payloads. [0003] Much of the effort in stray light suppression is achieved through optical system design. The most fundamental way to eliminate stray light is to study the source of stray light and then analyze the geometrical optics policy. When the space camera is running in orbit, design omissions or stray light caused by the complex space environment can only be eliminated by ...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 岳春宇何红艳邢坤刘爽鲍云飞周楠
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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