INGC-GAN: An Implicit Neural-Guided Cycle Generative Approach for Perceptual-Friendly Underwater Image Enhancement.

IF 10.2 1区 计算机科学 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE IEEE transactions on neural networks and learning systems Pub Date : 2025-03-14 DOI:10.1109/TNNLS.2025.3539841
Weiming Li, Xuelong Wu, Shuaishuai Fan, Songjie Wei, Glyn Gowing
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Abstract

The key requirement for underwater image enhancement (UIE) is to overcome the unpredictable color degradation caused by the underwater environment and light attenuation, while addressing issues, such as color distortion, reduced contrast, and blurring. However, most existing unsupervised methods fail to effectively solve these problems, resulting in a visual disparity in metric-optimal qualitative results compared with undegraded images. In this work, we propose an implicit neural-guided cyclic generative model for UIE tasks, and the bidirectional mapping structure solves the aforementioned ill-posed problem from the perspective of bridging the gap between the metric-favorable and the perceptual-friendly versions. The multiband-aware implicit neural normalization effectively alleviates the degradation distribution. The U-shaped generator simulates human visual attention mechanisms, which enables the aggregation of global coarse-grained and local fine-grained features, and enhances the texture and edge features under the guidance of shallow semantics. The discriminator ensures perception-friendly visual results through a dual-branch structure via appearance and color. Extensive experiments and ablation analyses on the full-reference and nonreference underwater benchmarks demonstrate the superiority of our proposed method. It can restore degraded images in most underwater scenes with good generalization and robustness, and the code is available at https://github.com/SUIEDDM/INGC-GAN.

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INGC-GAN:用于感知友好型水下图像增强的隐式神经引导循环生成方法。
水下图像增强(UIE)的关键要求是克服水下环境和光衰减造成的不可预测的色彩衰减,同时解决色彩失真、对比度降低和模糊等问题。然而,现有的大多数无监督方法都无法有效解决这些问题,导致与未降级图像相比,度量最优的定性结果在视觉上存在差距。在这项工作中,我们提出了一种用于 UIE 任务的隐式神经引导循环生成模型,其双向映射结构从弥合度量优化版本与感知友好版本之间差距的角度解决了上述问题。多频带感知的隐式神经归一化有效缓解了劣化分布。U 形发生器模拟了人类的视觉注意机制,实现了全局粗粒度和局部细粒度特征的聚合,并在浅层语义的指导下增强了纹理和边缘特征。判别器通过外观和颜色的双分支结构确保视觉结果的感知友好性。在全参考和非参考水下基准上进行的大量实验和消融分析证明了我们所提方法的优越性。它可以恢复大多数水下场景中的退化图像,具有良好的泛化和鲁棒性,其代码可在 https://github.com/SUIEDDM/INGC-GAN 网站上获取。
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来源期刊
IEEE transactions on neural networks and learning systems
IEEE transactions on neural networks and learning systems COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE-COMPUTER SCIENCE, HARDWARE & ARCHITECTURE
CiteScore
23.80
自引率
9.60%
发文量
2102
审稿时长
3-8 weeks
期刊介绍: The focus of IEEE Transactions on Neural Networks and Learning Systems is to present scholarly articles discussing the theory, design, and applications of neural networks as well as other learning systems. The journal primarily highlights technical and scientific research in this domain.
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