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Behavioral biometrics-based continuous authentication is a promising authentication scheme, which uses behavioral biometrics recorded by built-in sensors to authenticate smartphone users throughout the session. However, current continuous…

Human-Computer Interaction · Computer Science 2026-01-08 Mingming Hu , Kun Zhang , Ruibang You , Bibo Tu

In this study, we propose an innovative method for the real-time detection of GPS spoofing attacks targeting drones, based on the video stream captured by a drone's camera. The proposed method collects frames from the video stream and their…

Cryptography and Security · Computer Science 2022-01-04 Barak Davidovich , Ben Nassi , Yuval Elovici

Many wireless communications systems found in aircraft lack standard security mechanisms, leaving them fundamentally vulnerable to attack. With affordable software-defined radios available, a novel threat has emerged, allowing a wide range…

Cryptography and Security · Computer Science 2019-05-21 Matthew Smith , Martin Strohmeier , Jon Harman , Vincent Lenders , Ivan Martinovic

Browser fingerprinting is a pervasive online tracking technique used increasingly often for profiling and targeted advertising. Prior research on the prevalence of fingerprinting heavily relied on automated web crawls, which inherently…

Cryptography and Security · Computer Science 2025-02-04 Meenatchi Sundaram Muthu Selva Annamalai , Igor Bilogrevic , Emiliano De Cristofaro

Nowadays, the increasingly growing number of mobile and computing devices has led to a demand for safer user authentication systems. Face anti-spoofing is a measure towards this direction for bio-metric user authentication, and in…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Suman Saha , Wenhao Xu , Menelaos Kanakis , Stamatios Georgoulis , Yuhua Chen , Danda Pani Paudel , Luc Van Gool

The measure of the friction factor in the location of the event is very important to get accurate inputs to model the accident, as the friction factor depends on environmental conditions and the dynamics of the event. In some low-middle…

Signal Processing · Electrical Eng. & Systems 2019-08-27 A. Baena , H. Londoño , G. Enciso , W. Toresan , E. Remolina

Event cameras are becoming increasingly popular in robotics and computer vision due to their beneficial properties, e.g., high temporal resolution, high bandwidth, almost no motion blur, and low power consumption. However, these cameras…

Robotics · Computer Science 2023-03-24 Andreas Ziegler , Daniel Teigland , Jonas Tebbe , Thomas Gossard , Andreas Zell

Detecting faces and heads appearing in video feeds are challenging tasks in real-world video surveillance applications due to variations in appearance, occlusions and complex backgrounds. Recently, several CNN architectures have been…

Computer Vision and Pattern Recognition · Computer Science 2018-09-11 Le Thanh Nguyen-Meidine , Eric Granger , Madhu Kiran , Louis-Antoine Blais-Morin

While the literature on security attacks and defense of Machine Learning (ML) systems mostly focuses on unrealistic adversarial examples, recent research has raised concern about the under-explored field of realistic adversarial attacks and…

Machine Learning · Computer Science 2023-05-23 Salijona Dyrmishi , Salah Ghamizi , Thibault Simonetto , Yves Le Traon , Maxime Cordy

Vision Transformers (ViT) have recently demonstrated exemplary performance on a variety of vision tasks and are being used as an alternative to CNNs. Their design is based on a self-attention mechanism that processes images as a sequence of…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Akshayvarun Subramanya , Aniruddha Saha , Soroush Abbasi Koohpayegani , Ajinkya Tejankar , Hamed Pirsiavash

In a spoofing attack, a malicious actor impersonates a legitimate user to access or manipulate data without authorization. The vulnerability of cryptographic security mechanisms to compromised user credentials motivates spoofing attack…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Tien Ngoc Ha , Daniel Romero

Mobile device authentication has been a highly active research topic for over 10 years, with a vast range of methods having been proposed and analyzed. In related areas such as secure channel protocols, remote authentication, or desktop…

Cryptography and Security · Computer Science 2020-09-23 René Mayrhofer , Vishwath Mohan , Stephan Sigg

Advertisers are increasingly turning to fingerprinting techniques to track users across the web. As web browsing activity shifts to mobile platforms, traditional browser fingerprinting techniques become less effective; however, device…

Computers and Society · Computer Science 2016-06-15 Anupam Das , Nikita Borisov , Edward Chou , Muhammad Haris Mughees

A millimetre-size superhydrophobic sphere impacting on the free surface of a quiescent bath can be propelled back into the air by capillary effects and dynamic fluid forces, whilst transferring part of its energy to the fluid. We report the…

Sensor simulation is a key component for testing the performance of self-driving vehicles and for data augmentation to better train perception systems. Typical approaches rely on artists to create both 3D assets and their animations to…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Ze Yang , Siva Manivasagam , Ming Liang , Bin Yang , Wei-Chiu Ma , Raquel Urtasun

Reliable and robust user identification and authentication are important and often necessary requirements for many digital services. It becomes paramount in social virtual reality (VR) to ensure trust, specifically in digital encounters…

Machine Learning · Computer Science 2023-10-27 Christian Schell , Andreas Hotho , Marc Erich Latoschik

We explore rigorous, systematic, and controlled experimental evaluation of adversarial examples in the real world and propose a testing regimen for evaluation of real world adversarial objects. We show that for small scene/ environmental…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Brett Jefferson , Carlos Ortiz Marrero

Passwords provide security mechanism for authentication and protection services against unwanted access to resources. A graphical based password is one promising alternatives of textual passwords. According to human psychology, humans are…

Cryptography and Security · Computer Science 2011-10-19 Wazir Zada Khan , Mohammed Y. Aalsalem , Yang Xiang

For the time being, mobile devices employ implicit authentication mechanisms, namely, unlock patterns, PINs or biometric-based systems such as fingerprint or face recognition. While these systems are prone to well-known attacks, the…

Machine Learning · Computer Science 2020-11-09 Cezara Benegui , Radu Tudor Ionescu

In this work, we investigate facial anonymization techniques in 360{\deg} videos and assess their influence on the perceived realism, anonymization effect, and presence of participants. In comparison to traditional footage, 360{\deg} videos…

Human-Computer Interaction · Computer Science 2024-08-12 Leslie Wöhler , Satoshi Ikehata , Kiyoharu Aizawa