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Expressway video anomaly detection is essential for safety management. However, identifying anomalies across diverse scenes remains challenging, particularly for far-field targets exhibiting subtle abnormal vehicle motions. While…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Xiaowei Mao , Bowen Sui , Weijie Zhang , Yawen Yang , Shengnan Guo , Shilong Zhao , Jiaqi Lin , Tingrui Wu , Youfang Lin , Huaiyu Wa

This paper strives for the detection of real-world anomalies such as burglaries and assaults in surveillance videos. Although anomalies are generally local, as they happen in a limited portion of the frame, none of the previous works on the…

计算机视觉与模式识别 · 计算机科学 2019-01-30 Federico Landi , Cees G. M. Snoek , Rita Cucchiara

To effectively address the issues of low sensitivity and high time consumption in time series anomaly detection, we propose an anomaly detection method based on cross-modal deep metric learning. A cross-modal deep metric learning feature…

机器学习 · 计算机科学 2025-09-17 Wei Li , Zheze Yang

Most current clustering based anomaly detection methods use scoring schema and thresholds to classify anomalies. These methods are often tailored to target specific data sets with "known" number of clusters. The paper provides a streaming…

机器学习 · 统计学 2019-11-04 Sreelekha Guggilam , Syed M. A. Zaidi , Varun Chandola , Abani K. Patra

Most real-world IoT data analysis tasks, such as clustering and anomaly event detection, are unsupervised and highly susceptible to the presence of outliers. In addition to sporadic scattered outliers caused by factors such as faulty sensor…

机器学习 · 计算机科学 2026-03-16 Yiqun Zhang , Zexi Tan , Xiaopeng Luo , Yunlin Liu

Aiming at the problem that the current video anomaly detection cannot fully use the temporal information and ignore the diversity of normal behavior, an anomaly detection method is proposed to integrate the spatiotemporal information of…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Chao Hu , Liqiang Zhu

We propose a new method for anomaly detection of human actions. Our method works directly on human pose graphs that can be computed from an input video sequence. This makes the analysis independent of nuisance parameters such as viewpoint…

计算机视觉与模式识别 · 计算机科学 2020-04-13 Amir Markovitz , Gilad Sharir , Itamar Friedman , Lihi Zelnik-Manor , Shai Avidan

This paper addresses the challenge of automated violence detection in video frames captured by surveillance cameras, specifically focusing on classifying scenes as "fight" or "non-fight." This task is critical for enhancing unmanned…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Gourang Pathak , Abhay Kumar , Sannidhya Rawat , Shikha Gupta

Real-world deployment of reliable object detectors is crucial for applications such as autonomous driving. However, general-purpose object detectors like Faster R-CNN are prone to providing overconfident predictions for outlier objects.…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Nishant Kumar , Siniša Šegvić , Abouzar Eslami , Stefan Gumhold

Clustering and outlier detection are two important tasks in data mining. Outliers frequently interfere with clustering algorithms to determine the similarity between objects, resulting in unreliable clustering results. Currently, only a few…

机器学习 · 计算机科学 2024-12-10 Qi Li , Shuliang Wang

Community detection, which aims to cluster $N$ nodes in a given graph into $r$ distinct groups based on the observed undirected edges, is an important problem in network data analysis. In this paper, the popular stochastic block model (SBM)…

统计理论 · 数学 2015-06-04 T. Tony Cai , Xiaodong Li

Anomaly detection in surveillance videos is an important research problem in computer vision. In this paper, we propose ADNet, an anomaly detection network, which utilizes temporal convolutions to localize anomalies in videos. The model…

计算机视觉与模式识别 · 计算机科学 2021-04-15 Halil İbrahim Öztürk , Ahmet Burak Can

Anomaly detection with weakly supervised video-level labels is typically formulated as a multiple instance learning (MIL) problem, in which we aim to identify snippets containing abnormal events, with each video represented as a bag of…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Yu Tian , Guansong Pang , Yuanhong Chen , Rajvinder Singh , Johan W. Verjans , Gustavo Carneiro

Anomaly detecting as an important technical in cloud computing is applied to support smooth running of the cloud platform. Traditional detecting methods based on statistic, analysis, etc. lead to the high false-alarm rate due to…

机器学习 · 计算机科学 2019-01-29 Jing Zhang

The increasing global crime rate, coupled with substantial human and property losses, highlights the limitations of traditional surveillance methods in promptly detecting diverse and unexpected acts of violence. Addressing this pressing…

计算机视觉与模式识别 · 计算机科学 2025-06-18 Aritra Dutta , Pushpita Boral , G Suseela

Abnormal event detection is a challenging task that requires effectively handling intricate features of appearance and motion. In this paper, we present an approach of detecting anomalies in videos by learning a novel LSTM based…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Habtamu Fanta , Zhiwen Shao , Lizhuang Ma

Robust and computationally efficient anomaly detection in videos is a problem in video surveillance systems. We propose a technique to increase robustness and reduce computational complexity in a Convolutional Neural Network (CNN) based…

Anomalous behavior detection is a challenging research area within computer vision. Progress in this area enables automated detection of dangerous behavior using surveillance camera feeds. A dangerous behavior that is often overlooked in…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Ivo P. C. Kersten , Erkut Akdag , Egor Bondarev , Peter H. N. De With

Anomaly detection in videos is a problem that has been studied for more than a decade. This area has piqued the interest of researchers due to its wide applicability. Because of this, there has been a wide array of approaches that have been…

计算机视觉与模式识别 · 计算机科学 2020-09-30 Jessie James P. Suarez , Prospero C. Naval

Abnormal behavior detection in surveillance video is a pivotal part of the intelligent city. Most existing methods only consider how to detect anomalies, with less considering to explain the reason of the anomalies. We investigate an…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Luchuan Song , Bin Liu , Huihui Zhu , Qi Chu , Nenghai Yu