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Video anomaly detection (VAD) has been paid increasing attention due to its potential applications, its current dominant tasks focus on online detecting anomalies% at the frame level, which can be roughly interpreted as the binary or…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Peng Wu , Jing Liu , Xiangteng He , Yuxin Peng , Peng Wang , Yanning Zhang

Video Anomaly Detection (VAD) is critical for surveillance and public safety. However, existing benchmarks are limited to either frame-level or video-level tasks, restricting a holistic view of model generalization. This work first…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Seoik Jung , Taekyung Song , Joshua Jordan Daniel , JinYoung Lee , SungJun Lee

Anomaly detection is a popular and vital task in various research contexts, which has been studied for several decades. To ensure the safety of people's lives and assets, video surveillance has been widely deployed in various public spaces,…

计算机视觉与模式识别 · 计算机科学 2021-10-12 Jing Ren , Feng Xia , Yemeng Liu , Ivan Lee

The growing demand for intelligent security in consumer electronics, such as smart home cameras and personal monitoring systems, is often hindered by the high computational cost and large model sizes of advanced AI. These limitations…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Wen-Dong Jiang , Chih-Yung Chang , Ssu-Chi Kuai , Diptendu Sinha Roy

Video anomaly detection (VAD) aims to identify unexpected events in videos and has wide applications in safety-critical domains. While semi-supervised methods trained on only normal samples have gained traction, they often suffer from high…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Zongcan Ding , Haodong Zhang , Peng Wu , Guansong Pang , Zhiwei Yang , Peng Wang , Yanning Zhang

The considerable significance of Anomaly Detection (AD) problem has recently drawn the attention of many researchers. Consequently, the number of proposed methods in this research field has been increased steadily. AD strongly correlates…

计算机视觉与模式识别 · 计算机科学 2021-03-03 Bahram Mohammadi , Mahmood Fathy , Mohammad Sabokrou

Video Anomaly Detection(VAD) has been traditionally tackled in two main methodologies: the reconstruction-based approach and the prediction-based one. As the reconstruction-based methods learn to generalize the input image, the model merely…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Joo-Yeon Lee , Woo-Jeoung Nam , Seong-Whan Lee

Video anomaly detection (VAD) aims to temporally locate abnormal events in a video. Existing works mostly rely on training deep models to learn the distribution of normality with either video-level supervision, one-class supervision, or in…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Luca Zanella , Willi Menapace , Massimiliano Mancini , Yiming Wang , Elisa Ricci

Open Set Video Anomaly Detection (OpenVAD) aims to identify abnormal events from video data where both known anomalies and novel ones exist in testing. Unsupervised models learned solely from normal videos are applicable to any testing…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Yuansheng Zhu , Wentao Bao , Qi Yu

Video anomaly detection (VAD) is a challenging task aiming to recognize anomalies in video frames, and existing large-scale VAD researches primarily focus on road traffic and human activity scenes. In industrial scenes, there are often a…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Jinfan Liu , Yichao Yan , Junjie Li , Weiming Zhao , Pengzhi Chu , Xingdong Sheng , Yunhui Liu , Xiaokang Yang

Video anomaly detection (VAD) is an important but challenging task in computer vision. The main challenge rises due to the rarity of training samples to model all anomaly cases. Hence, semi-supervised anomaly detection methods have gotten…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Mohammad Baradaran , Robert Bergevin

Video anomaly detection (VAD) systems are increasingly deployed in safety critical environments and require a large amount of data for accurate detection. However, such data may contain personally identifiable information (PII), including…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Nazia Aslam , Abhisek Ray , Thomas B. Moeslund , Kamal Nasrollahi

Underwater video monitoring is a promising strategy for assessing marine biodiversity, but the vast volume of uneventful footage makes manual inspection highly impractical. In this work, we explore the use of visual anomaly detection (VAD)…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Laura Weihl , Stefan H. Bengtson , Nejc Novak , Malte Pedersen

Video Anomaly Detection (VAD) can play a key role in spotting unusual activities in video footage. VAD is difficult to use in real-world settings due to the dynamic nature of human actions, environmental variations, and domain shifts.…

计算机视觉与模式识别 · 计算机科学 2025-08-13 Shanle Yao , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Hamed Tabkhi

Video Anomaly Detection (VAD) automates the identification of unusual events, such as security threats in surveillance videos. In real-world applications, VAD models must effectively operate in cross-domain settings, identifying rare…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Yashika Jain , Ali Dabouei , Min Xu

The practical deployment of Visual Anomaly Detection (VAD) systems is hindered by their sensitivity to real-world imaging variations, particularly the complex interplay between viewpoint and illumination which drastically alters defect…

计算机视觉与模式识别 · 计算机科学 2025-05-19 Yunkang Cao , Yuqi Cheng , Xiaohao Xu , Yiheng Zhang , Yihan Sun , Yuxiang Tan , Yuxin Zhang , Xiaonan Huang , Weiming Shen

Semi-supervised video anomaly detection (VAD) methods formulate the task of anomaly detection as detection of deviations from the learned normal patterns. Previous works in the field (reconstruction or prediction-based methods) suffer from…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Mohammad Baradaran , Robert Bergevin

Video Anomaly Detection (VAD) automatically identifies anomalous events from video, mitigating the need for human operators in large-scale surveillance deployments. However, two fundamental obstacles hinder real-world adoption: domain…

计算机视觉与模式识别 · 计算机科学 2025-05-26 Hyogun Lee , Haksub Kim , Ig-Jae Kim , Yonghun Choi

Video anomaly detection (VAD) has witnessed significant advancements through the integration of large language models (LLMs) and vision-language models (VLMs), addressing critical challenges such as interpretability, temporal reasoning, and…

计算机视觉与模式识别 · 计算机科学 2024-12-25 Xi Ding , Lei Wang

Video anomaly detection (VAD) remains a challenging task in the pattern recognition community due to the ambiguity and diversity of abnormal events. Existing deep learning-based VAD methods usually leverage proxy tasks to learn the normal…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Mengyang Zhao , Yang Liu , Jing Li , Xinhua Zeng