Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution

This article considers the inverse problem under hyperspectral images (HSIs) denoising framework. Recently, it has been shown that deep learning is a promising approach to image denoising. However, deep learning to be effective usually needs a massive amount of training data. Moreover, in a practica...

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Main Authors: Keivan Faghih Niresi, Chong-Yung Chi
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9813381/
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author Keivan Faghih Niresi
Chong-Yung Chi
author_facet Keivan Faghih Niresi
Chong-Yung Chi
author_sort Keivan Faghih Niresi
collection DOAJ
description This article considers the inverse problem under hyperspectral images (HSIs) denoising framework. Recently, it has been shown that deep learning is a promising approach to image denoising. However, deep learning to be effective usually needs a massive amount of training data. Moreover, in a practical scenario, HSIs may get contaminated by different kinds of noises such as Gaussian and/or sparse noise. Lately, it has been reported that the convolutional neural network (CNN), the core element used by deep image prior (DIP), is able to capture image statistical characteristics without the need of training, i.e., restore the clean image blindly. Nonetheless, there exists some performance gap between DIP and state-of-the-art methods in HSIs (e.g., low-rank models). By applying the Huber loss function (HLF), which is derived through a least favorable distribution in robust statistics, to DIP, we propose a novel unsupervised denoising algorithm, referred as to the HLF-DIP, free from pretraining and without involving any regularizer. Extensive experimental results are provided to demonstrate that the proposed HLF-DIP algorithm significantly outperforms seven state-of-the-art algorithms in both complexity (thanks to no regularization) and robustness against complex noise (e.g., mixed types of noises).
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spelling doaj-art-eb68a3e1caea46a8a6dc79aa29d3df792025-01-30T00:00:10ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352022-01-01155967598310.1109/JSTARS.2022.31877229813381Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable DistributionKeivan Faghih Niresi0https://orcid.org/0000-0003-0311-5877Chong-Yung Chi1https://orcid.org/0000-0001-5004-7155Institute of Communications Engineering, National Tsing Hua University, Hsinchu, TaiwanInstitute of Communications Engineering and Department of Electrical Engineering, National Tsing Hua University, Hsinchu, TaiwanThis article considers the inverse problem under hyperspectral images (HSIs) denoising framework. Recently, it has been shown that deep learning is a promising approach to image denoising. However, deep learning to be effective usually needs a massive amount of training data. Moreover, in a practical scenario, HSIs may get contaminated by different kinds of noises such as Gaussian and/or sparse noise. Lately, it has been reported that the convolutional neural network (CNN), the core element used by deep image prior (DIP), is able to capture image statistical characteristics without the need of training, i.e., restore the clean image blindly. Nonetheless, there exists some performance gap between DIP and state-of-the-art methods in HSIs (e.g., low-rank models). By applying the Huber loss function (HLF), which is derived through a least favorable distribution in robust statistics, to DIP, we propose a novel unsupervised denoising algorithm, referred as to the HLF-DIP, free from pretraining and without involving any regularizer. Extensive experimental results are provided to demonstrate that the proposed HLF-DIP algorithm significantly outperforms seven state-of-the-art algorithms in both complexity (thanks to no regularization) and robustness against complex noise (e.g., mixed types of noises).https://ieeexplore.ieee.org/document/9813381/Adam optimizerconvolutional neural networkdeep image priorHuber loss functionhyperspectral denoisingleast favorable distribution
spellingShingle Keivan Faghih Niresi
Chong-Yung Chi
Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Adam optimizer
convolutional neural network
deep image prior
Huber loss function
hyperspectral denoising
least favorable distribution
title Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution
title_full Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution
title_fullStr Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution
title_full_unstemmed Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution
title_short Unsupervised Hyperspectral Denoising Based on Deep Image Prior and Least Favorable Distribution
title_sort unsupervised hyperspectral denoising based on deep image prior and least favorable distribution
topic Adam optimizer
convolutional neural network
deep image prior
Huber loss function
hyperspectral denoising
least favorable distribution
url https://ieeexplore.ieee.org/document/9813381/
work_keys_str_mv AT keivanfaghihniresi unsupervisedhyperspectraldenoisingbasedondeepimagepriorandleastfavorabledistribution
AT chongyungchi unsupervisedhyperspectraldenoisingbasedondeepimagepriorandleastfavorabledistribution