Results 71 to 80 of about 7,700 (189)
Saliency-based video summarization for face anti-spoofing
Pattern Recognition Letters, 2023 With the growing availability of databases for face presentation attack detection, researchers are increasingly focusing on video-based face anti-spoofing methods that involve hundreds to thousands of images for training the models. However, there is currently no clear consensus on the optimal number of frames in a video to improve face spoofing ...
Oussalah Mourad +3 more
openaire +2 more sources
IET Cyber-Systems and Robotics, Volume 8, Issue 1, January/December 2026.ABSTRACT With the rapid proliferation of unmanned aerial vehicles (UAVs) in the military, logistics and public safety sectors, the threat of illegal intrusion, information theft, and security breaches has increased. This paper provides a comprehensive review of recent developments in counter‐unmanned aerial vehicle (counter‐UAV) systems, focussing on ...
Lei Xing, Can Cui, Miao Wang, Chao Xu
wiley +1 more source
Tracking Loop Distortion of BDS‐3 B1C Signal in Spoofing Scenarios: An Experimental Analysis
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This study established a feeder‐based BDS spoofing experimental platform and uses multi‐correlator tracking to systematically analyse the tracking loop distortion characteristics of BDS‐3 B1C signals under position and time spoofing, comparing differences between narrowband (NB) and wideband (WB) tracking modes.
Bo Jiao +4 more
wiley +1 more source
Dual-Path Adaptive Channel Attention Network Based on Feature Constraints for Face Anti-Spoofing
IEEE AccessInterference factors in visible light image data, such as backgrounds and lighting, often lead to poor performance of RGB-based single-modality face anti-spoofing methods.
Nana Li +4 more
doaj +1 more source
Towards a Secure Central Bank Digital Currency System: A Case Study of Tanzania
The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.This study proposes a secure, context‐specific design for a Central Bank Digital Currency (CBDC) system for Tanzania, grounded in stakeholder input and empirical data. It identifies key adoption barriers in digital financial services, namely, security and privacy concerns and high transaction fees, and suggests how a well‐designed CBDC might address ...
Godbless Gibson Minja +2 more
wiley +1 more source
Design and Fabrication of a Self‐Driven Air Purifying Bicycle With Real‐Time Monitoring System
Engineering Reports, Volume 7, Issue 12, December 2025.This study presents a self‐powered air purifying bicycle that delivers real‐time filtered airflow based on environmental and physiological feedback, significantly reducing cyclist exposure to PM2.5 and VOCs while enhancing urban air quality through dual‐channel purification.
Manpreet Singh +3 more
wiley +1 more source
Topological Quasiparticles of Light: From Spin‐Orbit Coupling to Photonic Skyrmions
Laser &Photonics Reviews, Volume 19, Issue 24, December 17, 2025.This review summarizes recent advances in photonic skyrmions, emphasizing the central role of spin–orbit coupling in their formation. The review discusses how spin–orbit interactions generate skyrmionic textures, examines modulation strategies for their dynamic control, and provides an overview of emerging directions and opportunities where these ...
Xinrui Lei, Qiwen Zhan
wiley +1 more source
Spoofing and Anti-Spoofing with Wax Figure Faces
CoRR, 2019 We have witnessed rapid advances in both face presentation attack models and presentation attack detection (PAD) in recent years. Compared to widely studied 2D face presentation attacks (e.g. printed photos and video replays), 3D face presentation attacks are more challenging because face recognition systems (FRS) is more easily confused by the 3D ...
Shan Jia +3 more
openaire +2 more sources
Energy Conversion and Economics, Volume 6, Issue 6, Page 341-358, December 2025.Abstract Low‐frequency oscillations (LFOs) remain a major obstacle to maintaining stable dynamic performance in power systems with high levels of renewable energy integration. In particular, inter‐area LFOs have emerged as a critical concern in large, interconnected grids.
Linglin Meng +10 more
wiley +1 more source
Nanophotonics, Volume 14, Issue 27, Page 5417-5425, December 2025.Abstract We propose two‐dimensional (2D) in‐plane heterostructures, composed of a 2D crystal adjoining a perfect electric conductor (PEC) plane, that enable ultranarrow polaritonic resonant cavities. Specifically, we theoretically investigate the interaction of 2D surface polaritons (2DSPs) with the junction between the 2D crystal and a PEC plane.
Seojoo Lee, Ji‐Hun Kang
wiley +1 more source