Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning

Synthetic Aperture Radar (SAR) is an indispensable remote sensing technology nowadays. However, due to the different imaging theory applied in Synthetic Aperture Radars, the interpretation of SAR images may come out as extremely different from conventional optical satellite images. Thus, to tackl...

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Bibliographic Details
Main Author: Zhou, Hao
Other Authors: Lu Yilong
Format: Thesis-Master by Coursework
Language:English
Published: Nanyang Technological University 2022
Subjects:
Online Access:https://hdl.handle.net/10356/154639
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author Zhou, Hao
author2 Lu Yilong
author_facet Lu Yilong
Zhou, Hao
author_sort Zhou, Hao
collection NTU
description Synthetic Aperture Radar (SAR) is an indispensable remote sensing technology nowadays. However, due to the different imaging theory applied in Synthetic Aperture Radars, the interpretation of SAR images may come out as extremely different from conventional optical satellite images. Thus, to tackle with the interpretation problem, a specialized SAR-optical image translation model is developed to directly translate the original SAR images into equivalent optical satellite images. This model is implemented with a novel two-step Generative Adversarial Network architecture. To present the performance of proposed model on SAR-Optical image translation task, remote sensing data acquired from Sentinel-1 and Sentinel-2 is utilized for the model training and validation phase. The final results indicate a promising performance both on enhancing the human perception of translated optical images and increasing the statistical indices of PNSR and SSIM, which have reached at 19.09 dB and 0.4211 respectively.
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spelling ntu-10356/1546392023-07-04T17:43:06Z Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning Zhou, Hao Lu Yilong School of Electrical and Electronic Engineering EYLU@ntu.edu.sg Engineering::Computer science and engineering::Computing methodologies::Image processing and computer vision Engineering::Electrical and electronic engineering Synthetic Aperture Radar (SAR) is an indispensable remote sensing technology nowadays. However, due to the different imaging theory applied in Synthetic Aperture Radars, the interpretation of SAR images may come out as extremely different from conventional optical satellite images. Thus, to tackle with the interpretation problem, a specialized SAR-optical image translation model is developed to directly translate the original SAR images into equivalent optical satellite images. This model is implemented with a novel two-step Generative Adversarial Network architecture. To present the performance of proposed model on SAR-Optical image translation task, remote sensing data acquired from Sentinel-1 and Sentinel-2 is utilized for the model training and validation phase. The final results indicate a promising performance both on enhancing the human perception of translated optical images and increasing the statistical indices of PNSR and SSIM, which have reached at 19.09 dB and 0.4211 respectively. Master of Science (Signal Processing) 2022-01-03T07:04:03Z 2022-01-03T07:04:03Z 2021 Thesis-Master by Coursework Zhou, H. (2021). Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/154639 https://hdl.handle.net/10356/154639 en ISM-DISS-02473 application/pdf Nanyang Technological University
spellingShingle Engineering::Computer science and engineering::Computing methodologies::Image processing and computer vision
Engineering::Electrical and electronic engineering
Zhou, Hao
Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning
title Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning
title_full Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning
title_fullStr Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning
title_full_unstemmed Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning
title_short Cloud removal in optical remote sensing imagery based on direct translation from SAR to optical image using deep learning
title_sort cloud removal in optical remote sensing imagery based on direct translation from sar to optical image using deep learning
topic Engineering::Computer science and engineering::Computing methodologies::Image processing and computer vision
Engineering::Electrical and electronic engineering
url https://hdl.handle.net/10356/154639
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