Single image visibility restoration using optical compensation and pixel-by-pixel transmission estimation

Yan YANG; Gao-ke CHEN

doi:10.11959/j.issn.1000-436x.2017099

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Single image visibility restoration using optical compensation and pixel-by-pixel transmission estimation

Papers | 更新时间：2024-06-05

- Single image visibility restoration using optical compensation and pixel-by-pixel transmission estimation
- Journal on Communications Vol. 38, Issue 5, Pages: 48-56(2017)
- 作者机构：
  
  兰州交通大学电子与信息工程学院，甘肃兰州 730070
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61561030);Fundamental Research Funds for the Gansu Provincial Finance Department(214138);Research Fund of Teaching Reform Project of Lanzhou Jiaotong University(160012)
- DOI：10.11959/j.issn.1000-436x.2017099
  CLC： TP391
- Online First：2017-05，
  
  Published：25 May 2017
- 稿件说明：
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Yan YANG, Gao-ke CHEN. Single image visibility restoration using optical compensation and pixel-by-pixel transmission estimation[J]. Journal on Communications, 2017, 38(5): 48-56.
DOI：

Yan YANG, Gao-ke CHEN. Single image visibility restoration using optical compensation and pixel-by-pixel transmission estimation[J]. Journal on Communications, 2017, 38(5): 48-56. DOI： 10.11959/j.issn.1000-436x.2017099.

摘要

针对雾霾和沙尘天气下图像降质，提出一种光补偿色彩复原和逐像素透射率估计的单幅图像可见度复原算法。沙尘颗粒对蓝光吸收导致图像偏黄，利用光补偿方法可以消除偏色现象并转换为雾图。以最小颜色通道与其高斯函数的比值关系估计透射率，用中值滤波消除透射率纹理效应，恢复的透射率深度交替明显，边缘保持良好，不需要耗时的后处理操作，最后根据大气散射模型恢复图像。实验结果表明，沙尘天气处理效果较好，雾天图像恢复的图像饱和度适宜，明亮区域恢复得更为自然，运行时间较快。

Abstract

Aiming at image degradation in hazy and sandstorm weather

an optical compensation color restoration and pixel-by-pixel transmissvity estimation algorithm was proposed.The blue light was absorbed by sandstorm particles.The color shift phenomenon could be eliminated by optical compensate method

which convert the sandstorm images into hazy images.Then the ratio relationship between the minimum channel and its Gaussian function as the transmissivity

and median filter was used to eliminate its texture effects.The depth of the restored transmissivity alternated obviously and the edge was well preserved

which did not need the time-consuming postprocessing operativity.Finally

the image was restored by the atmospheric scattering model.The experimental results show that recovered sandstorm image treatment is better

and the saturation of the haze image is appropriate

the bright area is more nature

and running time is faster.

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Keywords

references

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