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Wavelet enabled convolutional autoencoder based deep neural network for hyperspectral image denoising

Published: 01 January 2022 Publication History

Abstract

Denoising of hyperspectral images (HSIs) is an important preprocessing step to enhance the performance of its analysis and interpretation. In reality, a remotely sensed HSI experiences disturbance from different sources and therefore gets affected by multiple noise types. However, most of the existing denoising methods concentrates in removal of a single noise type ignoring their mixed effect. Therefore, a method developed for a particular noise type doesn’t perform satisfactorily for other noise types. To address this limitation, a denoising method is proposed here, that effectively removes multiple frequently encountered noise patterns from HSI including their combinations. The proposed dual branch deep neural network based architecture works on wavelet transformed bands. The first branch of the network uses deep convolutional skip connected layers with residual learning for extracting local and global noise features. The second branch includes layered autoencoder together with subpixel upsampling that performs repeated convolution in each layer to extract prominent noise features from the image. Two hyperspectral datasets are used in the experiment to evaluate the performance of the proposed method for denoising of Gaussian, stripe and mixed noises. Experimental results demonstrate the superior performance of the proposed network compared to other state-of-the-art denoising methods with PSNR 36.74, SSIM 0.97 and overall accuracy 94.03 %.

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  • (2023)Curvelet Transform Based Compression Algorithm for Low Resource Hyperspectral Image SensorsJournal of Electrical and Computer Engineering10.1155/2023/89612712023Online publication date: 1-Jan-2023

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Published In

cover image Multimedia Tools and Applications
Multimedia Tools and Applications  Volume 81, Issue 2
Jan 2022
1497 pages

Publisher

Kluwer Academic Publishers

United States

Publication History

Published: 01 January 2022
Accepted: 18 October 2021
Revision received: 02 August 2021
Received: 13 April 2021

Author Tags

  1. Hyperspectral image
  2. Denoising
  3. Convolutional neural networks
  4. Residual learning
  5. Discrete wavelet transformation

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View all
  • (2024)The Role of Transformer-cGANs Fusion in Digital MarketingJournal of Organizational and End User Computing10.4018/JOEUC.34791436:1(1-22)Online publication date: 17-Sep-2024
  • (2023)Curvelet Transform Based Compression Algorithm for Low Resource Hyperspectral Image SensorsJournal of Electrical and Computer Engineering10.1155/2023/89612712023Online publication date: 1-Jan-2023

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