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Zero-Shot Anomaly Detection (ZSAD) seeks to identify anomalies from arbitrary novel categories, offering a scalable and annotation-efficient solution. Traditionally, most ZSAD works have been based on the CLIP model, which performs anomaly…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Jingyi Yuan , Jianxiong Ye , Wenkang Chen , Chenqiang Gao

Multimodal Large Language Models (MLLMs) have achieved impressive success in natural visual understanding, yet they consistently underperform in industrial anomaly detection (IAD). This is because MLLMs trained mostly on general web data…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Xi Jiang , Yue Guo , Jian Li , Yong Liu , Bin-Bin Gao , Hanqiu Deng , Jun Liu , Heng Zhao , Chengjie Wang , Feng Zheng

Zero-shot anomaly detection (ZSAD) often leverages pretrained vision or vision-language models, but many existing methods use prompt learning or complex modeling to fit the data distribution, resulting in high training or inference cost and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Chaoran Xu , Chengkan Lv , Qiyu Chen , Feng Zhang , Zhengtao Zhang

Humans detect real-world object anomalies by perceiving, interacting, and reasoning based on object-conditioned physical knowledge. The long-term goal of Industrial Anomaly Detection (IAD) is to enable machines to autonomously replicate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Wenqiao Li , Yao Gu , Xintao Chen , Xiaohao Xu , Ming Hu , Xiaonan Huang , Yingna Wu

In industrial settings, the accurate detection of anomalies is essential for maintaining product quality and ensuring operational safety. Traditional industrial anomaly detection (IAD) models often struggle with flexibility and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Zhiling Chen , Hanning Chen , Mohsen Imani , Farhad Imani

Few-Shot Industrial Anomaly Detection (FS-IAD) has important applications in automating industrial quality inspection. Recently, some FS-IAD methods based on Large Vision-Language Models (LVLMs) have been proposed with some achievements…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Mengyang Zhao , Teng Fu , Haiyang Yu , Ke Niu , Bin Li

Automated visual inspection in medical-device manufacturing faces unique challenges, including extremely low defect rates, limited annotated data, hardware restrictions on production lines, and the need for validated, explainable…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Julio Zanon Diaz , Georgios Siogkas , Peter Corcoran

Industrial anomaly detection (IAD) is crucial for automating industrial quality inspection. The diversity of the datasets is the foundation for developing comprehensive IAD algorithms. Existing IAD datasets focus on the diversity of data…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Zilong Zhang , Zhibin Zhao , Xingwu Zhang , Chuang Sun , Xuefeng Chen

Multimodal large language models (MLLMs) have shown remarkable capability in bridging visual perception and textual reasoning, enabling zero-shot understanding across diverse industrial scenarios. However, their performance in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Rongbin Tan , Fangfang Lin , Zhenlong Yuan , Min Qiu , Kejin Cui , Mengmeng Wang , Yi Wang , Zijian Song , Zhiyuan Wang , Jiyuan Wang , Yue Wang , Shuhan Song§ , Huawei Cao

Zero-Shot Anomaly Detection (ZSAD) aims to detect anomalies in unseen domains without target-domain adaptation. Recent CLIP-based methods have shown promising performance by leveraging prompt learning and visual-text alignment. However,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Xinyu Zhao , Qingyun Sun , Jiayi Luo , Jianxin Li

Video anomaly detection (VAD) is currently a challenging task due to the complexity of anomaly as well as the lack of labor-intensive temporal annotations. In this paper, we propose an end-to-end Global Information Guided (GIG) anomaly…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Hui Lv , Chunyan Xu , Zhen Cui

Vision-language models have recently shown strong generalization in zero-shot anomaly detection (ZSAD), enabling the detection of unseen anomalies without task-specific supervision. However, existing approaches typically rely on fixed…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Peng Chen , Chao Huang

3D anomaly detection (3D-AD) plays a critical role in industrial manufacturing, particularly in ensuring the reliability and safety of core equipment components. Although existing 3D datasets like Real3D-AD and MVTec 3D-AD offer broad…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Bingyang Guo , Hongjie Li , Ruiyun Yu , Hanzhe Liang , Jinbao Wang

Industrial Anomaly Detection (IAD) is a subproblem within Computer Vision Anomaly Detection that has been receiving increasing amounts of attention due to its applicability to real-life scenarios. Recent research has focused on how to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Mariette Schönfeld , Wannes Meert , Hendrik Blockeel

The performance of visual anomaly inspection in industrial quality control is often constrained by the scarcity of real anomalous samples. Consequently, anomaly synthesis techniques have been developed to enlarge training sets and enhance…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Yishen Liu , Hongcang Chen , Pengcheng Zhao , Yunfan Bao , Yuxi Tian , Jieming Zhang , Hao Chen , Zheng Zhi , Yongchun Liu , Ying Li , Dongpu Cao

Anomaly detection (AD) plays a pivotal role in multimedia applications for detecting defective products and automating quality inspection. Deep learning (DL) models typically require large-scale annotated data, which are often highly…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Eirini Cholopoulou , Dimitris K. Iakovidis

Large Vision-Language Models (LVLMs) such as MiniGPT-4 and LLaVA have demonstrated the capability of understanding images and achieved remarkable performance in various visual tasks. Despite their strong abilities in recognizing common…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Zhaopeng Gu , Bingke Zhu , Guibo Zhu , Yingying Chen , Ming Tang , Jinqiao Wang

Current anomaly detection methods primarily focus on low-resolution scenarios. For high-resolution images, conventional downsampling often results in missed detections of subtle anomalous regions due to the loss of fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Ximiao Zhang , Min Xu , Xiuzhuang Zhou

Although multimodal large language models (MLLMs) have advanced industrial anomaly detection toward a zero-shot paradigm, they still tend to produce high-confidence yet unreliable decisions in fine-grained and structurally complex…

Machine Learning · Computer Science 2026-03-03 Chao Huang , Yanhui Li , Yunkang Cao , Wei Wang , Hongxi Huang , Jie Wen , Wenqi Ren , Xiaochun Cao

Medical anomaly detection (AD) is crucial for early clinical intervention, yet it faces challenges due to limited access to high-quality medical imaging data, caused by privacy concerns and data silos. Few-shot learning has emerged as a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Kaiyu Guo , Tan Pan , Chen Jiang , Zijian Wang , Brian C. Lovell , Limei Han , Yuan Cheng , Mahsa Baktashmotlagh