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Unsupervised Multi-Expert Learning Model for Underwater Image Enhancement
Hongmin Liu; Qi Zhang; Yufan Hu; Hui Zeng; Bin Fan
Source PublicationIEEE/CAA Journal of Automatica Sinica
AbstractUnderwater image enhancement aims to restore a clean appearance and thus improves the quality of underwater degraded images. Current methods feed the whole image directly into the model for enhancement. However, they ignored that the R, G and B channels of underwater degraded images present varied degrees of degradation, due to the selective absorption for the light. To address this issue, we propose an unsupervised multi-expert learning model by considering the enhancement of each color channel. Specifically, an unsupervised architecture based on generative adversarial network is employed to alleviate the need for paired underwater images. Based on this, we design a generator, including a multi-expert encoder, a feature fusion module and a feature fusion-guided decoder, to generate the clear underwater image. Accordingly, a multi-expert discriminator is proposed to verify the authenticity of the R, G and B channels, respectively. In addition, content perceptual loss and edge loss are introduced into the loss function to further improve the content and details of the enhanced images. Extensive experiments on public datasets demonstrate that our method achieves more pleasing results in vision quality. Various metrics (PSNR, SSIM, UIQM and UCIQE) evaluated on our enhanced images have been improved obviously.
KeywordMulti-expert learning underwater image enhancement unsupervised learning
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Document Type期刊论文
Collection学术期刊_IEEE/CAA Journal of Automatica Sinica
Recommended Citation
GB/T 7714
Hongmin Liu,Qi Zhang,Yufan Hu,et al. Unsupervised Multi-Expert Learning Model for Underwater Image Enhancement[J]. IEEE/CAA Journal of Automatica Sinica,2024,11(3):708-722.
APA Hongmin Liu,Qi Zhang,Yufan Hu,Hui Zeng,&Bin Fan.(2024).Unsupervised Multi-Expert Learning Model for Underwater Image Enhancement.IEEE/CAA Journal of Automatica Sinica,11(3),708-722.
MLA Hongmin Liu,et al."Unsupervised Multi-Expert Learning Model for Underwater Image Enhancement".IEEE/CAA Journal of Automatica Sinica 11.3(2024):708-722.
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