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Industrial visual inspection aims at detecting surface defects in products during the manufacturing process. Although existing anomaly detection models have shown great performance on many public benchmarks, their limited adjustability and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Tongkun Liu , Bing Li , Xiao Du , Bingke Jiang , Xiao Jin , Liuyi Jin , Zhuo Zhao

Recent years have seen a surge of interest in anomaly detection for tackling industrial defect detection, event detection, etc. However, existing unsupervised anomaly detectors, particularly those for the vision modality, face significant…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Dong Chen , Kaihang Pan , Guoming Wang , Yueting Zhuang , Siliang Tang

We propose a text-guided variational image generation method to address the challenge of getting clean data for anomaly detection in industrial manufacturing. Our method utilizes text information about the target object, learned from…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Mingyu Lee , Jongwon Choi

Manufacturing requires reliable object detection methods for precise picking and handling of diverse types of manufacturing parts and components. Traditional object detection methods utilize either only 2D images from cameras or 3D data…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Nazanin Mahjourian , Vinh Nguyen

We present ModMap, a natively multiview and multimodal framework for 3D anomaly detection and segmentation. Unlike existing methods that process views independently, our method draws inspiration from the crossmodal feature mapping paradigm…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Alex Costanzino , Pierluigi Zama Ramirez , Giuseppe Lisanti , Luigi Di Stefano

3D Anomaly Detection (AD) is a promising means of controlling the quality of manufactured products. However, existing methods typically require carefully training a task-specific model for each category independently, leading to high cost,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Jiayi Cheng , Can Gao , Jie Zhou , Jiajun Wen , Tao Dai , Jinbao Wang

Recent studies of multimodal industrial anomaly detection (IAD) based on 3D point clouds and RGB images have highlighted the importance of exploiting the redundancy and complementarity among modalities for accurate classification and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Wenbo Sui , Daniel Lichau , Josselin Lefèvre , Harold Phelippeau

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

Industrial anomaly detection is increasingly relying on foundation models, aiming for strong out-of-distribution generalization and rapid adaptation in real-world deployments. Notably, past studies have primarily focused on textual prompt…

Computer Vision and Pattern Recognition · Computer Science 2026-01-23 Po-Han Huang , Jeng-Lin Li , Po-Hsuan Huang , Ming-Ching Chang , Wei-Chao Chen

Visual anomaly detection in multi-class settings poses significant challenges due to the diversity of object categories, the scarcity of anomalous examples, and the presence of camouflaged defects. In this paper, we propose PromptMAD, a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-02 Duncan McCain , Hossein Kashiani , Fatemeh Afghah

Existing anomaly detection (AD) methods often treat the modality and class as independent factors. Although this paradigm has enriched the development of AD research branches and produced many specialized models, it has also led to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yuan Zhao , Youwei Pang , Lihe Zhang , Hanqi Liu , Jiaming Zuo , Huchuan Lu , Xiaoqi Zhao

Multimodal Industrial Anomaly Detection (MIAD), which utilizes 3D point clouds and 2D RGB images to identify abnormal regions in products, plays a crucial role in industrial quality inspection. However, traditional MIAD settings assume that…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Bingchen Miao , Wenqiao Zhang , Juncheng Li , Wangyu Wu , Siliang Tang , Zhaocheng Li , Haochen Shi , Jun Xiao , Yueting Zhuang

Although recent methods have tried to introduce large multimodal models (LMMs) into industrial anomaly detection (IAD), their generalization in the IAD field is far inferior to that for general purposes. We summarize the main reasons for…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Yuanze Li , Shihao Yuan , Haolin Wang , Qizhang Li , Ming Liu , Chen Xu , Guangming Shi , Wangmeng Zuo

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

Industrial anomaly detection is generally addressed as an unsupervised task that aims at locating defects with only normal training samples. Recently, numerous 2D anomaly detection methods have been proposed and have achieved promising…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Yuanpeng Tu , Boshen Zhang , Liang Liu , Yuxi Li , Xuhai Chen , Jiangning Zhang , Yabiao Wang , Chengjie Wang , Cai Rong Zhao

The quest for incremental unified multimodal anomaly detection seeks to empower a single model with the ability to systematically detect anomalies across all categories and support incremental learning to accommodate emerging…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Kaifang Long , Lianbo Ma , Jiaqi Liu , Liming Liu , Guoyang Xie

Unsupervised anomaly detection (UAD) aims to identify image- and pixel-level anomalies using only normal training data, with wide applications such as industrial inspection and medical analysis, where anomalies are scarce due to privacy…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Zhe Zhang , Mingxiu Cai , Gaochang Wu , Jing Zhang , Lingqiao Liu , Dacheng Tao , Tianyou Chai , Xiatian Zhu

Industrial anomaly detection (IAD) increasingly benefits from integrating 2D and 3D data, but robust cross-modal fusion remains challenging. We propose a novel unsupervised framework, Multi-Modal Attention-Driven Fusion Restoration (MAFR),…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Usman Ali , Ali Zia , Abdul Rehman , Umer Ramzan , Zohaib Hassan , Talha Sattar , Jing Wang , Wei Xiang

Industrial anomaly detection demands precise reasoning over fine-grained defect patterns. However, existing multimodal large language models (MLLMs), pretrained on general-domain data, often struggle to capture category-specific anomalies,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Peng Chen , Chao Huang , Yunkang Cao , Chengliang Liu , Wei Wang , Wenqiang Wang , Mingbo Yang , Li Shen , Wenqi Ren , Xiaochun Cao

The widespread application of graph data in various high-risk scenarios has increased attention to graph anomaly detection (GAD). Faced with real-world graphs that often carry node descriptions in the form of raw text sequences, termed…

Machine Learning · Computer Science 2025-08-04 Yiming Xu , Xu Hua , Zhen Peng , Bin Shi , Jiarun Chen , Xingbo Fu , Song Wang , Bo Dong