Underwater Image Restoration via Polymorphic Large Kernel CNNs

• URL: http://arxiv.org/abs/2412.18459v1
• Date: Tue, 24 Dec 2024 14:32:27 GMT
• Title: Underwater Image Restoration via Polymorphic Large Kernel CNNs
• Authors: Xiaojiao Guo, Yihang Dong, Xuhang Chen, Weiwen Chen, Zimeng Li, FuChen Zheng, Chi-Man Pun,
• Abstract summary: Underwater Image Restoration (UIR) remains a challenging task in computer vision due to the complex degradation of images in underwater environments. We introduce UIR-Poly Kernel, a novel method for underwater image restoration that leverages Polymorphic Large Kernel CNNs. Our results show that well-designed pure CNN architectures can effectively compete with more complex models.
• Score: 27.3614759555859
• License:
• Abstract: Underwater Image Restoration (UIR) remains a challenging task in computer vision due to the complex degradation of images in underwater environments. While recent approaches have leveraged various deep learning techniques, including Transformers and complex, parameter-heavy models to achieve significant improvements in restoration effects, we demonstrate that pure CNN architectures with lightweight parameters can achieve comparable results. In this paper, we introduce UIR-PolyKernel, a novel method for underwater image restoration that leverages Polymorphic Large Kernel CNNs. Our approach uniquely combines large kernel convolutions of diverse sizes and shapes to effectively capture long-range dependencies within underwater imagery. Additionally, we introduce a Hybrid Domain Attention module that integrates frequency and spatial domain attention mechanisms to enhance feature importance. By leveraging the frequency domain, we can capture hidden features that may not be perceptible to humans but are crucial for identifying patterns in both underwater and on-air images. This approach enhances the generalization and robustness of our UIR model. Extensive experiments on benchmark datasets demonstrate that UIR-PolyKernel achieves state-of-the-art performance in underwater image restoration tasks, both quantitatively and qualitatively. Our results show that well-designed pure CNN architectures can effectively compete with more complex models, offering a balance between performance and computational efficiency. This work provides new insights into the potential of CNN-based approaches for challenging image restoration tasks in underwater environments. The code is available at \href{https://github.com/CXH-Research/UIR-PolyKernel}{https://github.com/CXH-Research/UIR-PolyKernel}.

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