arXiv:2606.19097cs.CV2026-06

提出可自适应多种退化类型的图像修复网络,提升细节恢复能力。

DVANet: Degradation-aware Visual-prior Alignment Network for Image Restoration

论文配图:DVANet: Degradation-aware Visual-prior Alignment Network for Image Restoration
图 1 · 摘自论文原文
  • 基于半二次分裂算法设计可解释的迭代修复框架
  • 融合全局退化特征与局部退化线索,增强退化适应性
  • 利用DINOv3提供结构语义先验,改善损坏区域细节重建

全场景图像修复旨在构建统一框架以应对多种退化类型。现有端到端方法通常将修复过程视为黑箱映射,缺乏明确优化解释。尽管深度展开提供了可解释的迭代建模范式,但多数方法依赖固定退化假设或预设退化信息,难以适应复杂退化和局部受损内容的统一修复需求,限制了其在退化抑制与结构细节恢复上的表现。为此,本文提出DVANet,一种受半二次分裂优化算法启发的深度展开网络,将复杂退化下的统一图像修复建模为退化感知观测一致性与视觉先验引导重建之间的协同展开过程。具体地,在退化感知观测一致性分支中,采用退化表示模块提取全局退化属性与局部退化线索,并通过退化条件映射提升模型对不同退化类型的适应性;在视觉先验引导重建分支中,引入DINOv3提供层次化结构与语义信息作为视觉先验,从而弥补受损区域缺失的结构信息,提升细节恢复效果。大量实验表明,DVANet在多场景退化与跨域图像修复任务上达到优于或相当的性能,展现出良好的退化适应性与泛化能力。

原文摘要 · Abstract (English)

All-in-One image restoration aims to develop a unified restoration framework for handling diverse degradation types. Existing end-to-end methods usually regard the restoration process as a black-box mapping, lacking an explicit optimization interpretation. Although deep unfolding provides an interpretable iterative modeling paradigm for image restoration, existing methods mostly rely on fixed degradation assumptions or predefined degradation information, making them difficult to adapt to unified restoration requirements under complex degradations and locally damaged content. This limitation restricts their performance in degradation suppression and structural detail recovery. To address these issues, this paper proposes DVANet, a deep unfolding network inspired by the half-quadratic splitting optimization algorithm, which formulates unified image restoration under complex degradations as a collaborative unfolding process between degradation-aware observation consistency and visual-prior-guided reconstruction. Specifically, in the degradation-aware observation consistency branch, a degradation representation module is employed to extract global degradation attributes and local degradation cues, and degradation-conditioned mapping is used to enhance the model's adaptability to different degradation types. In the visual-prior-guided reconstruction branch, DINOv3 is introduced to provide structural and semantic information as hierarchical visual priors, thereby complementing the missing structural information in damaged regions and improving detail recovery. Extensive experiments demonstrate that DVANet achieves superior or competitive performance on multi-scenario degradation and cross-domain image restoration tasks, showing favorable degradation adaptability and generalization ability.

图像修复深度展开视觉先验退化自适应

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