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Smart Video surveillance systems have become important recently for ensuring public safety and security, especially in smart cities. However, applying real-time artificial intelligence technologies combined with low-latency notification and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Shanle Yao , Babak Rahimi Ardabili , Armin Danesh Pazho , Ghazal Alinezhad Noghre , Christopher Neff , Hamed Tabkhi

In Pose-based Video Anomaly Detection prior art is rooted on the assumption that abnormal events can be mostly regarded as a result of uncommon human behavior. Opposed to utilizing skeleton representations of humans, however, we investigate…

Computer Vision and Pattern Recognition · Computer Science 2025-03-30 Mia Siemon , Ivan Nikolov , Thomas B. Moeslund , Kamal Nasrollahi

When training powerful AI systems to perform complex tasks, it may be challenging to provide training signals which are robust to optimization. One concern is \textit{measurement tampering}, where the AI system manipulates multiple…

Machine Learning · Computer Science 2023-10-02 Fabien Roger , Ryan Greenblatt , Max Nadeau , Buck Shlegeris , Nate Thomas

Video anomaly detection (VAD) aims to discover behaviors or events deviating from the normality in videos. As a long-standing task in the field of computer vision, VAD has witnessed much good progress. In the era of deep learning, with the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Peng Wu , Chengyu Pan , Yuting Yan , Guansong Pang , Peng Wang , Yanning Zhang

Our aim is to estimate the perspective-effected geometric distortion of a scene from a video feed. In contrast to all previous work we wish to achieve this using from low-level, spatio-temporally local motion features used in commercial…

Computer Vision and Pattern Recognition · Computer Science 2015-04-22 Ognjen Arandjelovic , Duc-Son Pham , Svetha Venkatesh

Technological advances in sensor manufacture, communication, and computing are stimulating the development of new applications that are transforming traditional vision systems into pervasive intelligent camera networks. The analysis of…

Computer Vision and Pattern Recognition · Computer Science 2013-02-05 Mingli Song , Dachent Tao , Stephen J. Maybank

Investigating efficiently the data collected from a system's activity can help to detect malicious attempts and better understand the context behind past incident occurrences. Nowadays, several solutions can be used to monitor system…

Cryptography and Security · Computer Science 2021-12-03 Inês Macedo , Sinan Wanous , Nuno Oliveira , Orlando Sousa , Isabel Praça

Information security is a critical issue in modern society and image watermarking can effectively prevent unauthorized information access. Optical image watermarking techniques generally have advantages of parallel high-speed processing and…

Computer Vision and Pattern Recognition · Computer Science 2018-09-26 Shuming Jiao , Changyuan Zhou , Yishi Shi , Wenbin Zou , Xia Li

Money laundering is a major global problem, enabling criminal organisations to hide their ill-gotten gains and to finance further operations. Prevention of money laundering is seen as a high priority by many governments, however detection…

Social and Information Networks · Computer Science 2016-08-03 David Savage , Qingmai Wang , Pauline Chou , Xiuzhen Zhang , Xinghuo Yu

Surveillance cameras are widely applied for indoor occupancy measurement and human movement perception, which benefit for building energy management and social security. To address the challenges of limited view angle of single camera as…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Ping Zhang , Zhenxiang Tao , Wenjie Yang , Minze Chen , Shan Ding , Xiaodong Liu , Rui Yang , Hui Zhang

Recently, several techniques have been explored to detect unusual behaviour in surveillance videos. Nevertheless, few studies leverage features from pre-trained CNNs and none of then present a comparison of features generate by different…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Tiago S. Nazare , Rodrigo F. de Mello , Moacir A. Ponti

Detecting digital face manipulation in images and video has attracted extensive attention due to the potential risk to public trust. To counteract the malicious usage of such techniques, deep learning-based deepfake detection methods have…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Yuhang Lu , Touradj Ebrahimi

In this paper, we provide a novel dataset designed for camera invariant color constancy research. Camera invariance corresponds to the robustness of an algorithm's performance when run on images of the same scene taken by different cameras.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-16 Caglar Aytekin , Jarno Nikkanen , Moncef Gabbouj

We review the broad variety of methods that have been proposed for anomaly detection in images. Most methods found in the literature have in mind a particular application. Yet we show that the methods can be classified mainly by the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-04 Thibaud Ehret , Axel Davy , Jean-Michel Morel , Mauricio Delbracio

The increasing frequency of firearm-related incidents has necessitated advancements in security and surveillance systems, particularly in firearm detection within public spaces. Traditional gun detection methods rely on manual inspections…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Amulya Reddy Maligireddy , Manohar Reddy Uppula , Nidhi Rastogi , Yaswanth Reddy Parla

Progress in video anomaly detection research is currently slowed by small datasets that lack a wide variety of activities as well as flawed evaluation criteria. This paper aims to help move this research effort forward by introducing a…

Computer Vision and Pattern Recognition · Computer Science 2020-01-27 Bharathkumar Ramachandra , Michael Jones

Anomalies represent deviations from the intended system operation and can lead to decreased efficiency as well as partial or complete system failure. As the causes of anomalies are often unknown due to complex system dynamics, efficient…

Machine Learning · Computer Science 2021-08-31 Benjamin Lindemann , Benjamin Maschler , Nada Sahlab , Michael Weyrich

Statistical divergence is widely applied in multimedia processing, basically due to regularity and interpretable features displayed in data. However, in a broader range of data realm, these advantages may no longer be feasible, and…

Databases · Computer Science 2020-11-20 Ruoyu Wang , Xiaobo Hu , Daniel Sun , Guoqiang Li , Raymond Wong , Shiping Chen , Jianquan Liu

Rapid progress in deep learning is continuously making it easier and cheaper to generate video forgeries. Hence, it becomes very important to have a reliable way of detecting these forgeries. This paper describes such an approach for…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Nika Dogonadze , Jana Obernosterer , Ji Hou

Online proctoring has become a necessity in online teaching. Video-based crowd-sourced online proctoring solutions are being used, where an exam-taking student's video is monitored by third parties, leading to privacy concerns. In this…

Cryptography and Security · Computer Science 2021-07-21 Waheeb Yaqub , Manoranjan Mohanty , Basem Suleiman