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With the rapid development of Internet of Things technologies, the next generation traffic monitoring infrastructures are connected via the web, to aid traffic data collection and intelligent traffic management. One of the most important…

Artificial Intelligence · Computer Science 2023-04-25 Yue Hu , Yuhang Zhang , Yanbing Wang , Daniel Work

Due to its relevance in intelligent transportation systems, anomaly detection in traffic videos has recently received much interest. It remains a difficult problem due to a variety of factors influencing the video quality of a real-time…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Keval Doshi , Yasin Yilmaz

We introduce a powerful student-teacher framework for the challenging problem of unsupervised anomaly detection and pixel-precise anomaly segmentation in high-resolution images. Student networks are trained to regress the output of a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Paul Bergmann , Michael Fauser , David Sattlegger , Carsten Steger

The detection of traffic anomalies is a critical component of the intelligent city transportation management system. Previous works have proposed a variety of notable insights and taken a step forward in this field, however, dealing with…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Yuxiang Zhao , Wenhao Wu , Yue He , Yingying Li , Xiao Tan , Shifeng Chen

Time-stamp aware anomaly detection in traffic videos is an essential task for the advancement of the intelligent transportation system. Anomaly detection in videos is a challenging problem due to sparse occurrence of anomalous events,…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Kuldeep Marotirao Biradar , Ayushi Gupta , Murari Mandal , Santosh Kumar Vipparthi

Google uses continuous streams of data from industry partners in order to deliver accurate results to users. Unexpected drops in traffic can be an indication of an underlying issue and may be an early warning that remedial action may be…

Machine Learning · Statistics 2017-08-15 Dominique T. Shipmon , Jason M. Gurevitch , Paolo M. Piselli , Stephen T. Edwards

Abnormal event detection or anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. Due to the lack of anomalous events at training time, anomaly detection requires the design of…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Darshan Venkatrayappa

The detection of contextual anomalies is a challenging task for surveillance since an observation can be considered anomalous or normal in a specific environmental context. An unmanned aerial vehicle (UAV) can utilize its aerial monitoring…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Ilker Bozcan , Erdal Kayacan

This paper presents U-LanD, a framework for joint detection of key frames and landmarks in videos. We tackle a specifically challenging problem, where training labels are noisy and highly sparse. U-LanD builds upon a pivotal observation: a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Mohammad H. Jafari , Christina Luong , Michael Tsang , Ang Nan Gu , Nathan Van Woudenberg , Robert Rohling , Teresa Tsang , Purang Abolmaesumi

With the rapid development of the Internet, various types of anomaly traffic are threatening network security. We consider the problem of anomaly network traffic detection and propose a three-stage anomaly detection framework using only…

Machine Learning · Computer Science 2024-03-19 Zhangxuan Dang , Yu Zheng , Xinglin Lin , Chunlei Peng , Qiuyu Chen , Xinbo Gao

Congestion prediction represents a major priority for traffic management centres around the world to ensure timely incident response handling. The increasing amounts of generated traffic data have been used to train machine learning…

Signal Processing · Electrical Eng. & Systems 2020-06-25 Adriana-Simona Mihaita , Haowen Li , Marian-Andrei Rizoiu

Anomaly detection is a critical requirement for ensuring safety in autonomous driving. In this work, we leverage Cooperative Perception to share information across nearby vehicles, enabling more accurate identification and consensus of…

Multiagent Systems · Computer Science 2025-01-30 Ashish Bastola , Hao Wang , Abolfazl Razi

Anomaly detection in surveillance videos is currently a challenge because of the diversity of possible events. We propose a deep convolutional neural network (CNN) that addresses this problem by learning a correspondence between common…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Trong Nguyen Nguyen , Jean Meunier

Abnormal event detection (AED) in urban surveillance videos has multiple challenges. Unlike other computer vision problems, the AED is not solely dependent on the content of frames. It also depends on the appearance of the objects and their…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Ali Atghaei , Soroush Ziaeinejad , Mohammad Rahmati

Any intelligent traffic monitoring system must be able to detect anomalies such as traffic accidents in real time. In this paper, we propose a Decision-Tree - enabled approach powered by Deep Learning for extracting anomalies from traffic…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Armstrong Aboah , Maged Shoman , Vishal Mandal , Sayedomidreza Davami , Yaw Adu-Gyamfi , Anuj Sharma

Accuracy anomaly detection in user-level social multimedia traffic is crucial for privacy security. Compared with existing models that passively detect specific anomaly classes with large labeled training samples, user-level social…

Cryptography and Security · Computer Science 2024-09-04 Tongtong Feng , Qi Qi , Jingyu Wang

Detecting anomalous trajectories has become an important task in many location-based applications. While many approaches have been proposed for this task, they suffer from various issues including (1) incapability of detecting anomalous…

Databases · Computer Science 2022-11-16 Qianru Zhang , Zheng Wang , Cheng Long , Chao Huang , Siu-Ming Yiu , Yiding Liu , Gao Cong , Jieming Shi

This paper proposed a novel anomaly detection (AD) approach of High-speed Train images based on convolutional neural networks and the Vision Transformer. Different from previous AD works, in which anomalies are identified with a single…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Zhixue Wang , Yu Zhang , Lin Luo , Nan Wang

The inability of state-of-the-art semantic segmentation methods to detect anomaly instances hinders them from being deployed in safety-critical and complex applications, such as autonomous driving. Recent approaches have focused on either…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Giancarlo Di Biase , Hermann Blum , Roland Siegwart , Cesar Cadena

Nowadays, there are outstanding strides towards a future with autonomous vehicles on our roads. While the perception of autonomous vehicles performs well under closed-set conditions, they still struggle to handle the unexpected. This survey…

Robotics · Computer Science 2025-11-25 Daniel Bogdoll , Maximilian Nitsche , J. Marius Zöllner