arXiv:2508.17789cs.CVcs.LG2025-08ICCV被引 2

用元学习提升工业异常检测抗噪声能力,50%标签错误仍保持高精度。

Robust Anomaly Detection in Industrial Environments via Meta-Learning

  • 结合归一化流与元学习,实现快速适应不同噪声环境。
  • 在MVTec-AD和KSDD2上分别达95.4%和94.6%的I-AUROC,噪声率达50%仍超86.8%。
  • 适合数据不洁的工业场景,尤其对细微异常敏感。

异常检测对保障工业环境的质量控制与运行效率至关重要,但传统方法在训练数据存在误标样本时面临严峻挑战,这在真实场景中极为常见。本文提出RAD框架,将归一化流与模型无关元学习结合,解决工业场景中的标签噪声问题。该方法采用双层优化策略:元学习实现对不同噪声条件的快速适应,不确定性量化引导自适应L2正则化以保持模型稳定。通过预训练特征提取器进行多尺度特征处理,并利用归一化流的精确似然估计能力实现鲁棒的异常评分。在MVTec-AD和KSDD2数据集上的全面评估表明,该框架在无噪声条件下分别取得95.4%和94.6%的I-AUROC;当50%训练样本被错误标注时,仍能保持86.8%和92.1%的检测性能。结果凸显了RAD在噪声训练条件下的卓越鲁棒性及在多样工业场景中检测微小异常的能力,为难以实现完美数据清洗的实际应用提供了可行方案。

原文摘要 · Abstract (English)

Anomaly detection is fundamental for ensuring quality control and operational efficiency in industrial environments, yet conventional approaches face significant challenges when training data contains mislabeled samples-a common occurrence in real-world scenarios. This paper presents RAD, a robust anomaly detection framework that integrates Normalizing Flows with Model-Agnostic Meta-Learning to address the critical challenge of label noise in industrial settings. Our approach employs a bi-level optimization strategy where meta-learning enables rapid adaptation to varying noise conditions, while uncertainty quantification guides adaptive L2 regularization to maintain model stability. The framework incorporates multiscale feature processing through pretrained feature extractors and leverages the precise likelihood estimation capabilities of Normalizing Flows for robust anomaly scoring. Comprehensive evaluation on MVTec-AD and KSDD2 datasets demonstrates superior performance, achieving I-AUROC scores of 95.4% and 94.6% respectively under clean conditions, while maintaining robust detection capabilities above 86.8% and 92.1% even when 50% of training samples are mislabeled. The results highlight RAD's exceptional resilience to noisy training conditions and its ability to detect subtle anomalies across diverse industrial scenarios, making it a practical solution for real-world anomaly detection applications where perfect data curation is challenging.

异常检测元学习工业质检噪声鲁棒

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