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Related papers: Image-Hashing-Based Anomaly Detection for Privacy-…

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As deepfake technologies continue to advance, passive detection methods struggle to generalize with various forgery manipulations and datasets. Proactive defense techniques have been actively studied with the primary aim of preventing…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Hongbo Li , Shangchao Yang , Ruiyang Xia , Lin Yuan , Xinbo Gao

Anomaly detection in surveillance videos is attracting an increasing amount of attention. Despite the competitive performance of recent methods, they lack theoretical performance analysis, particularly due to the complex deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Keval Doshi , Yasin Yilmaz

The expanding usage of complex machine learning methods like deep learning has led to an explosion in human activity recognition, particularly applied to health. In particular, as part of a larger body sensor network system, face and…

Computer Vision and Pattern Recognition · Computer Science 2021-06-24 Salman Seyedi , Zifan Jiang , Allan Levey , Gari D. Clifford

With the growth in social media, there is a huge amount of images of faces available on the internet. Often, people use other people's pictures on their own profile. Perceptual hashing is often used to detect whether two images are…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Yigit Alparslan , Ken Alparslan , Mannika Kshettry , Louis Kratz

The widespread deployment of surveillance cameras for facial recognition gives rise to many privacy concerns. This study proposes a privacy-friendly alternative to large scale facial recognition. While there are multiple techniques to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-28 Mattijs Baert , Sam Leroux , Pieter Simoens

The spread of the Coronavirus disease-2019 epidemic has caused many courses and exams to be conducted online. The cheating behavior detection model in examination invigilation systems plays a pivotal role in guaranteeing the equality of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Yemeng Liu , Jing Ren , Jianshuo Xu , Xiaomei Bai , Roopdeep Kaur , Feng Xia

Face authentication systems are becoming increasingly prevalent, especially with the rapid development of Deep Learning technologies. However, human facial information is easy to be captured and reproduced, which makes face authentication…

Computer Vision and Pattern Recognition · Computer Science 2018-08-23 Di Tang , Zhe Zhou , Yinqian Zhang , Kehuan Zhang

Forgery facial images and videos have increased the concern of digital security. It leads to the significant development of detecting forgery data recently. However, the data, especially the videos published on the Internet, are usually…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Jiajun Huang , Xinqi Zhu , Chengbin Du , Siqi Ma , Surya Nepal , Chang Xu

In the contemporary digital era, protection of personal information has become a paramount issue. The exponential growth of the media industry has heightened concerns regarding the anonymization of individuals captured in video footage.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-23 Byunghyun Ban , Hyoseok Lee

The existing methods for video anomaly detection mostly utilize videos containing identifiable facial and appearance-based features. The use of videos with identifiable faces raises privacy concerns, especially when used in a hospital or…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Pratik K. Mishra , Alex Mihailidis , Shehroz S. Khan

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

Images of morphed faces pose a serious threat to face recognition--based security systems, as they can be used to illegally verify the identity of multiple people with a single morphed image. Modern detection algorithms learn to identify…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Marija Ivanovska , Andrej Kronovšek , Peter Peer , Vitomir Štruc , Borut Batagelj

Anomaly detection is a challenging task and usually formulated as an one-class learning problem for the unexpectedness of anomalies. This paper proposes a simple yet powerful approach to this issue, which is implemented in the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Guodong Wang , Shumin Han , Errui Ding , Di Huang

As realistic facial manipulation technologies have achieved remarkable progress, social concerns about potential malicious abuse of these technologies bring out an emerging research topic of face forgery detection. However, it is extremely…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Yuyang Qian , Guojun Yin , Lu Sheng , Zixuan Chen , Jing Shao

Shoplifting poses a significant challenge for retailers, resulting in billions of dollars in annual losses. Traditional security measures often fall short, highlighting the need for intelligent solutions capable of detecting shoplifting…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Narges Rashvand , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Shanle Yao , Hamed Tabkhi

Face presentation attacks (PA), also known as spoofing attacks, pose a substantial threat to biometric systems that rely on facial recognition systems, such as access control systems, mobile payments, and identity verification systems. To…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Usman Muhammad , Md Ziaul Hoque , Mourad Oussalah , Jorma Laaksonen

Occlusions remain one of the key challenges in 3D body pose estimation from single-camera video sequences. Temporal consistency has been extensively used to mitigate their impact but the existing algorithms in the literature do not…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Soumava Kumar Roy , Ilia Badanin , Sina Honari , Pascal Fua

Recently the use of video surveillance systems is widely increasing. Different places are equipped by camera surveillances such as hospitals, schools, airports, museums and military places in order to ensure the safety and security of the…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Mabrouka Hagui , Mohamed Ali Mahjoub , Ahmed Boukhris

Cameras mounted on Micro Aerial Vehicles (MAVs) are increasingly used for recreational photography. However, aerial photographs of public places often contain faces of bystanders thus leading to a perceived or actual violation of privacy.…

Computer Vision and Pattern Recognition · Computer Science 2018-10-31 Omair Sarwar , Bernhard Rinner , Andrea Cavallaro

Video Anomaly Detection (VAD) identifies unusual activities in video streams, a key technology with broad applications ranging from surveillance to healthcare. Tackling VAD in real-life settings poses significant challenges due to the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Shanle Yao , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Hamed Tabkhi