提出C3Net网络,解决伪装目标检测中边界模糊、上下文干扰等多重难题。
C3Net: Context-Contrast Network for Camouflaged Object Detection
- 双路径解码架构:边缘精修与上下文定位并行处理
- 在COD10K/ CAMO/ NC4K上分别达到0.898/0.904/0.913的S-measure
- 无需外部模型,通过图像级上下文引导抑制伪显著性
伪装目标检测旨在识别与背景在颜色、纹理和图案上高度相似的物体。该任务对传统分割方法和现代基础模型均构成严峻挑战,因其在伪装物体上表现严重退化。本文识别出伪装目标检测中的六大核心挑战:内在相似性、边缘破坏、极端尺度变化、环境复杂性、上下文依赖性以及显著性-伪装物体混淆。这些挑战常同时出现并相互加剧,需综合架构设计应对。为此,我们提出C3Net,采用专用双路径解码器结构:边缘精修路径利用梯度初始化的边缘增强模块,从早期特征中恢复精确边界;上下文定位路径引入新型图像级上下文引导机制,实现内在显著性抑制,无需外部模型。注意力融合模块通过空间门控协同两路径输出。C3Net在COD10K、CAMO、NC4K数据集上分别取得0.898、0.904、0.913的S-measure,达到当前最优性能,且推理高效。实验表明,复杂多维检测挑战需架构层面创新,专用组件协同可实现全面覆盖,超越单一改进。代码、模型权重及结果详见https://github.com/Baber-Jan/C3Net。
原文摘要 · Abstract (English)
Camouflaged object detection identifies objects that blend seamlessly with their surroundings through similar colors, textures, and patterns. This task challenges both traditional segmentation methods and modern foundation models, which fail dramatically on camouflaged objects. We identify six fundamental challenges in COD: Intrinsic Similarity, Edge Disruption, Extreme Scale Variation, Environmental Complexities, Contextual Dependencies, and Salient-Camouflaged Object Disambiguation. These challenges frequently co-occur and compound the difficulty of detection, requiring comprehensive architectural solutions. We propose C3Net, which addresses all challenges through a specialized dual-pathway decoder architecture. The Edge Refinement Pathway employs gradient-initialized Edge Enhancement Modules to recover precise boundaries from early features. The Contextual Localization Pathway utilizes our novel Image-based Context Guidance mechanism to achieve intrinsic saliency suppression without external models. An Attentive Fusion Module synergistically combines the two pathways via spatial gating. C3Net achieves state-of-the-art performance with S-measures of 0.898 on COD10K, 0.904 on CAMO, and 0.913 on NC4K, while maintaining efficient processing. C3Net demonstrates that complex, multifaceted detection challenges require architectural innovation, with specialized components working synergistically to achieve comprehensive coverage beyond isolated improvements. Code, model weights, and results are available at https://github.com/Baber-Jan/C3Net.
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