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Wireless network security may be improved by identifying networked devices via traits that are tied to hardware differences, typically related to unique variations introduced in the manufacturing process. One way these variations manifest…

Signal Processing · Electrical Eng. & Systems 2021-08-11 Abu Bucker Siddik , Dawson Drake , Thomas Wilkinson , Phillip L. De Leon , Steven Sandoval , Margaret Campos

The paper proposes a novel feature extraction approach for FMCW radar systems in the field of short-range gesture sensing. A light-weight processing is proposed which reduces a series of 3D radar data cubes to four 1D time signals…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Thomas Stadelmayer , Avik Santra , Robert Weigel , Fabian Lurz

Hand Gesture Recognition (HGR) based on inertial data has grown considerably in recent years, with the state-of-the-art approaches utilizing a single handheld sensor and a vocabulary comprised of simple gestures. In this work we explore the…

Human-Computer Interaction · Computer Science 2021-05-06 Matej Králik , Marek Šuppa

A lensless camera is an imaging system that uses a mask in place of a lens, making it thinner, lighter, and less expensive than a lensed camera. However, additional complex computation and time are required for image reconstruction. This…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Yinger Zhang , Zhouyi Wu , Peiying Lin , Yang Pan , Yuting Wu , Liufang Zhang , Jiangtao Huangfu

Wearable e-textile interfaces require gesture recognition capabilities but face severe constraints in power consumption, computational capacity, and form factor that make traditional deep learning impractical. While lightweight…

Machine Learning · Computer Science 2026-02-16 Daniel Schwartz , Dario Salvucci , Yusuf Osmanlioglu , Richard Vallett , Genevieve Dion , Ali Shokoufandeh

Human doing actions will result in WiFi distortion, which is widely explored for action recognition, such as the elderly fallen detection, hand sign language recognition, and keystroke estimation. As our best survey, past work recognizes…

Signal Processing · Electrical Eng. & Systems 2019-04-29 Fei Wang , Yunpeng Song , Jimuyang Zhang , Jinsong Han , Dong Huang

At the present time, hand gestures recognition system could be used as a more expected and useable approach for human computer interaction. Automatic hand gesture recognition system provides us a new tactic for interactive with the virtual…

Computer Vision and Pattern Recognition · Computer Science 2014-08-08 Reza Azad , Babak Azad , Nabil Belhaj Khalifa , Shahram Jamali

Gesture recognition is a very essential technology for many wearable devices. While previous algorithms are mostly based on statistical methods including the hidden Markov model, we develop two dynamic hand gesture recognition techniques…

Computer Vision and Pattern Recognition · Computer Science 2016-08-16 Sungho Shin , Wonyong Sung

Passive sensing techniques based on Wi-Fi signals have emerged as a promising technology in advanced wireless communication systems due to their widespread application and cost-effectiveness. However, the proliferation of low-cost Internet…

Systems and Control · Electrical Eng. & Systems 2023-11-13 Junshuo Liu , Fuhai Wang , Zhe Li , Rujing Xiong , Tiebin Mi , Robert Caiming Qiu

The growing demand for smart home interfaces has increased interest in non-intrusive sensing methods like vibration-based gesture recognition. While prior studies demonstrated feasibility, they often rely on complex preprocessing and large…

Machine Learning · Computer Science 2026-04-22 Koki Shibata , Tianheng Ling , Chao Qian , Tomokazu Matsui , Hirohiko Suwa , Keiichi Yasumoto , Gregor Schiele

Emotion is well-recognized as a distinguished symbol of human beings, and it plays a crucial role in our daily lives. Existing vision-based or sensor-based solutions are either obstructive to use or rely on specialized hardware, hindering…

Human-Computer Interaction · Computer Science 2019-08-28 Yu Gu , Yantong Wang , Tao Liu , Yusheng Ji , Zhi Liu , Peng Li , Xiaoyan Wang , Xin An , Fuji Ren

This paper explores the use of ambient radio frequency (RF) signals for human presence detection through deep learning. Using WiFi signal as an example, we demonstrate that the channel state information (CSI) obtained at the receiver…

Machine Learning · Computer Science 2020-12-11 Yang Liu , Tiexing Wang , Yuexin Jiang , Biao Chen

Thanks to the ubiquitousness of Wi-Fi access points and devices, Wi-Fi sensing enables transformative applications in remote health care, security, and surveillance. Existing work has explored the usage of machine learning on channel state…

Networking and Internet Architecture · Computer Science 2022-04-21 Niloofar Bahadori , Jonathan Ashdown , Francesco Restuccia

Many vision based applications have used fingertips to track or manipulate gestures in their applications. Gesture identification is a natural way to pass the signals to the machine, as the human express its feelings most of the time with…

Computer Vision and Pattern Recognition · Computer Science 2012-12-04 J. L. Raheja , Karen Das , Ankit Chaudhary

Wireless earbuds are an appealing platform for wearable computing on-the-go. However, their small size and out-of-view location mean they support limited different inputs. We propose finger identification input on earbuds as a novel…

Human-Computer Interaction · Computer Science 2025-03-05 Jiwan Kim , Mingyu Han , Ian Oakley

Privacy issues related to video camera feeds have led to a growing need for suitable alternatives that provide functionalities such as user authentication, activity classification and tracking in a noninvasive manner. Existing…

Machine Learning · Computer Science 2019-11-27 Vinoj Jayasundara , Hirunima Jayasekara , Tharaka Samarasinghe , Kasun T. Hemachandra

Radio frequency (RF) fingerprint technology is utilized for wireless device identification, extensively employed in the internet of things (IoT). The operating environment for IoT devices is challenging, with pervasive noise and distortion…

Signal Processing · Electrical Eng. & Systems 2024-12-19 Junxian Shi , Linning Peng , Wentao Jing , Lingnan Xie , Haichuan Peng , Aiqun Hu

Wireless fingerprinting refers to a device identification method leveraging hardware imperfections and wireless channel variations as signatures. Beyond physical layer characteristics, recent studies demonstrated that user behaviors could…

Information Theory · Computer Science 2023-08-30 Teng-Hui Huang , Thilini Dahanayaka , Kanchana Thilakarathna , Philip H. W. Leong , Hesham El Gamal

Person identification plays a vital role in enabling intelligent, personalized, and secure human-computer interaction. Recent research has demonstrated the feasibility of leveraging Wi-Fi signals for passive person identification using a…

Machine Learning · Computer Science 2025-10-10 Nabeel Nisar Bhat , Maksim Karnaukh , Jakob Struye , Rafael Berkvens , Jeroen Famaey

WiFi sensing has emerged as a compelling contactless modality for human activity monitoring by capturing fine-grained variations in Channel State Information (CSI). Its ability to operate continuously and non-intrusively while preserving…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Guozhen Zhu , Yuqian Hu , Weihang Gao , Wei-Hsiang Wang , Beibei Wang , K. J. Ray Liu