A Semiphysical Approach of Haze Removal for Landsat Image
The presence of haze could seriously contaminate the observations of optical satellite imagery. Haze not only significantly affects the visual interpretation but also reduces the accuracy of map products. In this article, a semiphysical approach is proposed to reduce the haze effects for Landsat ima...
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2021-01-01
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doaj-66fc1931fd3c4d79b92b4addc456ad392021-08-05T23:00:07ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352021-01-01147410742110.1109/JSTARS.2021.30966519484760A Semiphysical Approach of Haze Removal for Landsat ImageFeng Liu0https://orcid.org/0000-0003-2427-1713Yanjie Lv1Buhang Li2Shuai Gao3Yuchu Qin4Aerospace Information Research Institute, State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing, ChinaAerospace Information Research Institute, State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing, ChinaSchool of Life Sciences, Sun Yat-Sen University, Guangzhou, ChinaAerospace Information Research Institute, State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing, ChinaAerospace Information Research Institute, State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing, ChinaThe presence of haze could seriously contaminate the observations of optical satellite imagery. Haze not only significantly affects the visual interpretation but also reduces the accuracy of map products. In this article, a semiphysical approach is proposed to reduce the haze effects for Landsat image. The proposed approach is based on the physical model of radiative transfer theory and the presence of dark objects. As the depth map of satellite remotely sensed image is almost a constant value, the coarse transmission map of atmosphere is estimated by the haze thickness, other than the scene depth map. The derived coarse transmission is utilized to correct the color shift induced by airlight. For haze veiled textural information, the guided-filter based approach is adopted to refine the coarse transmission map to restore the textural information. Experiments are conducted upon the images acquired by Landsat at different dates and spatial locations. The visual interpretation upon the dehazed results suggests that the proposed approach could generate visually promising results and preserve spectral properties of land surfaces. Moreover, it also performs favorably against several state-of-the-art deep learning based methods and a classic algorithm. The results of quantitative assessments demonstrate that the developed approach could enhance the information of Landsat scene with minimum spectrum changes. With the visual and quantitative assessments, we can conclude that the proposed approach is a promising solution for Landsat image dehazing. It is expected to improve the data quality of hazy scene and expand the usability of Landsat data.https://ieeexplore.ieee.org/document/9484760/Dark objectguided-filterhaze removalLandsatlight transmission |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Feng Liu Yanjie Lv Buhang Li Shuai Gao Yuchu Qin |
spellingShingle |
Feng Liu Yanjie Lv Buhang Li Shuai Gao Yuchu Qin A Semiphysical Approach of Haze Removal for Landsat Image IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Dark object guided-filter haze removal Landsat light transmission |
author_facet |
Feng Liu Yanjie Lv Buhang Li Shuai Gao Yuchu Qin |
author_sort |
Feng Liu |
title |
A Semiphysical Approach of Haze Removal for Landsat Image |
title_short |
A Semiphysical Approach of Haze Removal for Landsat Image |
title_full |
A Semiphysical Approach of Haze Removal for Landsat Image |
title_fullStr |
A Semiphysical Approach of Haze Removal for Landsat Image |
title_full_unstemmed |
A Semiphysical Approach of Haze Removal for Landsat Image |
title_sort |
semiphysical approach of haze removal for landsat image |
publisher |
IEEE |
series |
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
issn |
2151-1535 |
publishDate |
2021-01-01 |
description |
The presence of haze could seriously contaminate the observations of optical satellite imagery. Haze not only significantly affects the visual interpretation but also reduces the accuracy of map products. In this article, a semiphysical approach is proposed to reduce the haze effects for Landsat image. The proposed approach is based on the physical model of radiative transfer theory and the presence of dark objects. As the depth map of satellite remotely sensed image is almost a constant value, the coarse transmission map of atmosphere is estimated by the haze thickness, other than the scene depth map. The derived coarse transmission is utilized to correct the color shift induced by airlight. For haze veiled textural information, the guided-filter based approach is adopted to refine the coarse transmission map to restore the textural information. Experiments are conducted upon the images acquired by Landsat at different dates and spatial locations. The visual interpretation upon the dehazed results suggests that the proposed approach could generate visually promising results and preserve spectral properties of land surfaces. Moreover, it also performs favorably against several state-of-the-art deep learning based methods and a classic algorithm. The results of quantitative assessments demonstrate that the developed approach could enhance the information of Landsat scene with minimum spectrum changes. With the visual and quantitative assessments, we can conclude that the proposed approach is a promising solution for Landsat image dehazing. It is expected to improve the data quality of hazy scene and expand the usability of Landsat data. |
topic |
Dark object guided-filter haze removal Landsat light transmission |
url |
https://ieeexplore.ieee.org/document/9484760/ |
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