Real-IAD Variety: Pushing Industrial Anomaly Detection Dataset to a Modern Era

Wenbing Zhu; Chengjie Wang; Bin-Bin Gao; Jiangning Zhang; Guannan Jiang; Jie Hu; Zhenye Gan; Lidong Wang; Ziqing Zhou; Jianghui Zhang; Linjie Cheng; Yurui Pan; Bo Peng; Mingmin Chi; Lizhuang Ma

arXiv · 2511.00540

Real-IAD Variety: Pushing Industrial Anomaly Detection Dataset to a Modern Era

Wenbing Zhu·Chengjie Wang·Bin-Bin Gao·Jiangning Zhang·Guannan Jiang·Jie Hu·Zhenye Gan·Lidong Wang·Ziqing Zhou·Jianghui Zhang·Linjie Cheng·Yurui Pan·Bo Peng·Mingmin Chi·Lizhuang Ma

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Abstract

Industrial Anomaly Detection (IAD) is a cornerstone for ensuring operational safety, maintaining product quality, and optimizing manufacturing efficiency. However, the advancement of IAD algorithms is severely hindered by the limitations of existing public benchmarks. Current datasets often suffer from restricted category diversity and insufficient scale, leading to performance saturation and poor model transferability in complex, real-world scenarios. To bridge this gap, we introduce Real-IAD Variety, the largest and most diverse IAD benchmark. It comprises 198,950 high-resolution images across 160 distinct object categories. The dataset ensures unprecedented diversity by covering 28 industries, 24 material types, 22 color variations, and 27 defect types. Our extensive experimental analysis highlights the substantial challenges posed by this benchmark: state-of-the-art multi-class unsupervised anomaly detection methods suffer significant performance degradation (ranging from 10% to 20%) when scaled from 30 to 160 categories. Conversely, we demonstrate that zero-shot and few-shot IAD models exhibit remarkable robustness to category scale-up, maintaining consistent performance and significantly enhancing generalization across diverse industrial contexts. This unprecedented scale positions Real-IAD Variety as an essential resource for training and evaluating next-generation foundation IAD models.

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Wenbing Zhu, Chengjie Wang, Bin-Bin Gao, Jiangning Zhang, Guannan Jiang, Jie Hu, Zhenye Gan, Lidong Wang, Ziqing Zhou, Jianghui Zhang, Linjie Cheng, Yurui Pan, Bo Peng, Mingmin Chi, Lizhuang Ma. 2025-11-01. Real-IAD Variety: Pushing Industrial Anomaly Detection Dataset to a Modern Era. https://arxiv.org/abs/2511.00540

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