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Anomaly detection suffered from the lack of anomalies due to the diversity of abnormalities and the difficulties of obtaining large-scale anomaly data. Semi-supervised anomaly detection methods are often used to solely leverage normal data…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Jian Shi , Ni Zhang

This study explores the recently proposed and challenging multi-view Anomaly Detection (AD) task. Single-view tasks will encounter blind spots from other perspectives, resulting in inaccuracies in sample-level prediction. Therefore, we…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Haoyang He , Jiangning Zhang , Guanzhong Tian , Chengjie Wang , Lei Xie

Video anomaly detection (VAD) has long been studied as a crucial problem in public security and crime prevention. In recent years, weakly-supervised VAD (WVAD) have attracted considerable attention due to their easy annotation process and…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Satoshi Hashimoto , Tatsuya Konishi , Tomoya Kaichi , Kazunori Matsumoto , Mori Kurokawa

In practice, machine learning methods commonly require anomaly detection (AD) to filter inputs or detect distributional shifts. Typically, this is implemented by running a separate AD model alongside the primary model. However, this…

机器学习 · 计算机科学 2026-03-19 Luca Hinkamp , Simon Klüttermann , Emmanuel Müller

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…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Wenqiao Li , Yao Gu , Xintao Chen , Xiaohao Xu , Ming Hu , Xiaonan Huang , Yingna Wu

Video anomaly detection (VAD) is a significant computer vision problem. Existing deep neural network (DNN) based VAD methods mostly follow the route of frame reconstruction or frame prediction. However, the lack of mining and learning of…

计算机视觉与模式识别 · 计算机科学 2023-04-12 Zhiwei Yang , Jing Liu , Zhaoyang Wu , Peng Wu , Xiaotao Liu

Time series anomaly detection is critical in many real-world applications, where effective solutions must localize anomalous regions and support reliable decision-making under complex settings. However, most existing methods frame anomaly…

机器学习 · 计算机科学 2026-02-17 Xiaoyu Tao , Yuchong Wu , Mingyue Cheng , Ze Guo , Tian Gao

Anomaly detection in complex industrial environments poses unique challenges, particularly in contexts characterized by data sparsity and evolving operational conditions. Predictive maintenance (PdM) in such settings demands methodologies…

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…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Zhaopeng Gu , Bingke Zhu , Guibo Zhu , Yingying Chen , Ming Tang , Jinqiao Wang

Training-free video anomaly detection (VAD) has recently emerged as a scalable alternative to supervised approaches, yet existing methods largely rely on static prompting and geometry-agnostic feature fusion. As a result, anomaly inference…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Ali Zia , Usman Ali , Muhammad Umer Ramzan , Hamza Abid , Abdul Rehman , Wei Xiang

In this paper, we introduce Masked Anomaly Detection (MAD), a general self-supervised learning task for multivariate time series anomaly detection. With the increasing availability of sensor data from industrial systems, being able to…

机器学习 · 计算机科学 2022-10-04 Yiwei Fu , Feng Xue

Video anomaly detection (VAD) aims to automatically identify events that deviate from normal patterns in untrimmed surveillance videos. Existing methods universally depend on large-scale annotations or task-specific training procedures,…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Chao Huang , Penfei Wei , Wei Wang , Jie Wen , Zhihua Wang , Li Shen , Wenqi Ren , Xiaochun Cao

Explainable video anomaly detection (VAD) is crucial for safety-critical applications, yet even with recent progress, much of the research still lacks spatial grounding, making the explanations unverifiable. This limitation is especially…

计算机视觉与模式识别 · 计算机科学 2026-01-14 Inpyo Song , Minjun Joo , Joonhyung Kwon , Eunji Jeon , Jangwon Lee

Video anomaly detection (VAD) aims to detect anomalies that deviate from what is expected. In open-world scenarios, the expected events may change as requirements change. For example, not wearing a mask may be considered abnormal during a…

计算机视觉与模式识别 · 计算机科学 2026-03-04 Zihao Liu , Xiaoyu Wu , Jianqin Wu , Xuxu Wang , Linlin Yang

Video anomaly detection (VAD) is crucial in scenarios such as surveillance and autonomous driving, where timely detection of unexpected activities is essential. Although existing methods have primarily focused on detecting anomalous objects…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Yuzhi Huang , Chenxin Li , Haitao Zhang , Zixu Lin , Yunlong Lin , Hengyu Liu , Wuyang Li , Xinyu Liu , Jiechao Gao , Yue Huang , Xinghao Ding , Yixuan Yuan

As the IT industry advances, system log data becomes increasingly crucial. Many computer systems rely on log texts for management due to restricted access to source code. The need for log anomaly detection is growing, especially in…

机器学习 · 计算机科学 2023-11-10 Gunho No , Yukyung Lee , Hyeongwon Kang , Pilsung Kang

Video anomaly understanding (VAU) aims to provide detailed interpretation and semantic comprehension of anomalous events within videos, addressing limitations of traditional methods that focus solely on detecting and localizing anomalies.…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Ying Cheng , Yu-Ho Lin , Min-Hung Chen , Fu-En Yang , Shang-Hong Lai

Video anomaly detection (VAD) mainly refers to identifying anomalous events that have not occurred in the training set where only normal samples are available. Existing works usually formulate VAD as a reconstruction or prediction problem.…

计算机视觉与模式识别 · 计算机科学 2021-11-17 Yue Lu , Congqi Cao , Yanning Zhang

Anomaly detection from images captured using camera sensors is one of the mainstream applications at the industrial level. Particularly, it maintains the quality and optimizes the efficiency in production processes across diverse industrial…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Abdelrahman Alzarooni , Ehtesham Iqbal , Samee Ullah Khan , Sajid Javed , Brain Moyo , Yusra Abdulrahman

Video anomaly detection is a subject of great interest across industrial and academic domains due to its crucial role in computer vision applications. However, the inherent unpredictability of anomalies and the scarcity of anomaly samples…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Yalong Jiang , Liquan Mao