arXiv:2508.06203cs.CV2025-08AAAI被引 9

无需语言提示,统一检测多种视觉异常的通用模型。

AnomalyMoE: Towards a Language-free Generalist Model for Unified Visual Anomaly Detection

  • 分层专家架构,分别处理局部、组件和全局异常
  • 8个数据集上超越专用模型,最高提升12.3%准确率
  • 适合跨领域工业质检与医疗影像等场景

异常检测在多个领域和模态中至关重要,但现有方法通常高度专业化,泛化能力差。针对这一问题,我们提出AnomalyMoE,一种基于混合专家(MoE)架构的通用异常检测框架。核心思想是将复杂异常检测任务分解为三个语义层级:局部结构异常、组件级语义异常和全局逻辑异常。对应地,AnomalyMoE采用三个专用专家网络,在补丁、组件和全局层级进行特征重建与偏差识别。该分层设计使单一模型能同时理解并检测多种异常。此外,引入专家信息排斥(EIR)模块以增强专家多样性,专家选择平衡(ESB)模块确保所有专家被充分使用。在涵盖工业成像、3D点云、医学影像、视频监控和逻辑异常检测的8个挑战性数据集上,AnomalyMoE均达到新最优性能,显著优于各领域的专用方法。

原文摘要 · Abstract (English)

Anomaly detection is a critical task across numerous domains and modalities, yet existing methods are often highly specialized, limiting their generalizability. These specialized models, tailored for specific anomaly types like textural defects or logical errors, typically exhibit limited performance when deployed outside their designated contexts. To overcome this limitation, we propose AnomalyMoE, a novel and universal anomaly detection framework based on a Mixture-of-Experts (MoE) architecture. Our key insight is to decompose the complex anomaly detection problem into three distinct semantic hierarchies: local structural anomalies, component-level semantic anomalies, and global logical anomalies. AnomalyMoE correspondingly employs three dedicated expert networks at the patch, component, and global levels, and is specialized in reconstructing features and identifying deviations at its designated semantic level. This hierarchical design allows a single model to concurrently understand and detect a wide spectrum of anomalies. Furthermore, we introduce an Expert Information Repulsion (EIR) module to promote expert diversity and an Expert Selection Balancing (ESB) module to ensure the comprehensive utilization of all experts. Experiments on 8 challenging datasets spanning industrial imaging, 3D point clouds, medical imaging, video surveillance, and logical anomaly detection demonstrate that AnomalyMoE establishes new state-of-the-art performance, significantly outperforming specialized methods in their respective domains.

异常检测通用模型MoE架构

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