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The Internet of Things (IoT) has boomed in recent years, with an ever-growing number of connected devices and a corresponding exponential increase in network traffic. As a result, IoT devices have become potential witnesses of the…

Networking and Internet Architecture · Computer Science 2023-05-19 Fabio Palmese , Alessandro E. C. Redondi

Groundbreaking applications such as ChatGPT have heightened research interest in generative artificial intelligence (GAI). Essentially, GAI excels not only in content generation but also in signal processing, offering support for wireless…

Signal Processing · Electrical Eng. & Systems 2024-04-23 Jiacheng Wang , Hongyang Du , Dusit Niyato , Zehui Xiong , Jiawen Kang , Bo Ai , Zhu Han , Dong In Kim

Device-free human tracking is an essential ingredient for ubiquitous wireless sensing. Recent passive WiFi tracking systems face the challenges of inaccurate separation of dynamic human components and time-consuming estimation of…

Networking and Internet Architecture · Computer Science 2021-09-14 Zhongqin Wang , J. Andrew Zhang , Min Xu , Y. Jay Guo

This study proposes a new deep learning method for reconstructing depth images of moving objects within a specific area using Wi-Fi channel state information (CSI). The Wi-Fi-based depth imaging technique has novel applications in domains…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Guanyu Cao , Takuya Maekawa , Kazuya Ohara , Yasue Kishino

As an important biomarker for human identification, human gait can be collected at a distance by passive sensors without subject cooperation, which plays an essential role in crime prevention, security detection and other human…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Lang Deng , Jianfei Yang , Shenghai Yuan , Han Zou , Chris Xiaoxuan Lu , Lihua Xie

WiFi sensing technology has shown superiority in smart homes among various sensors for its cost-effective and privacy-preserving merits. It is empowered by Channel State Information (CSI) extracted from WiFi signals and advanced machine…

Networking and Internet Architecture · Computer Science 2022-12-13 Jianfei Yang , Xinyan Chen , Han Zou , Dazhuo Wang , Lihua Xie

Robust WiFi-based human pose estimation (HPE) is a challenging task that bridges discrete and subtle WiFi signals to human skeletons. We revisit this problem and reveal two critical yet overlooked issues: 1) cross-domain gap, i.e., due to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Yang Chen , Jingcai Guo

Recent years have witnessed the rapid development in the research topic of WiFi sensing that automatically senses human with commercial WiFi devices. This work falls into two major categories, i.e., the activity recognition and the indoor…

Human-Computer Interaction · Computer Science 2019-07-22 Fei Wang , Jianwei Feng , Yinliang Zhao , Xiaobin Zhang , Shiyuan Zhang , Jinsong Han

Counting humans is an essential part of many people-centric applications. In this paper, we propose CrossCount: an accurate deep-learning-based human count estimator that uses a single WiFi link to estimate the human count in an area of…

Networking and Internet Architecture · Computer Science 2020-07-08 Osama T. Ibrahim , Walid Gomaa , Moustafa Youssef

WiFi-based 3D human pose estimation offers a low-cost and privacy-preserving alternative to vision-based systems for smart interaction. However, existing approaches rely on visual 3D poses as supervision and directly regress CSI to a…

Human-Computer Interaction · Computer Science 2026-01-21 Songming Jia , Yan Lu , Bin Liu , Xiang Zhang , Peng Zhao , Xinmeng Tang , Yelin Wei , Jinyang Huang , Huan Yan , Zhi Liu

Safety monitoring of power operations in power stations is crucial for preventing accidents and ensuring stable power supply. However, conventional methods such as wearable devices and video surveillance have limitations such as high cost,…

Signal Processing · Electrical Eng. & Systems 2024-03-05 Cunyi Yin , Xiren Miao , Jing Chen , Hao Jiang , Jianfei Yang , Yunjiao Zhou , Min Wu , Zhenghua Chen

Wi-Fi sensing is gaining momentum as a non-intrusive and privacy-preserving alternative to vision-based systems for human identification. However, person identification through wireless signals, particularly without user motion, remains…

We propose WiFlexFormer, a highly efficient Transformer-based architecture designed for WiFi Channel State Information (CSI)-based person-centric sensing. We benchmark WiFlexFormer against state-of-the-art vision and specialized…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Julian Strohmayer , Matthias Wödlinger , Martin Kampel

Traditional global positioning systems often underperform indoors, whereas Wi-Fi has become an effective medium for various radio sensing services. Specifically, utilizing channel state information (CSI) from Wi-Fi networks provides a…

Signal Processing · Electrical Eng. & Systems 2024-12-04 Pei Tang , Jingtao Guo , Ivan Wang-Hei Ho

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

We propose UniPose, a unified framework for human pose estimation, based on our "Waterfall" Atrous Spatial Pooling architecture, that achieves state-of-art-results on several pose estimation metrics. Current pose estimation methods…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Bruno Artacho , Andreas Savakis

The ultimate goal of this work is a real-time processing framework for ultrasound image reconstruction augmented with machine learning. To attain this, we have implemented WaveFlow - a set of ultrasound data acquisition and processing tools…

Signal Processing · Electrical Eng. & Systems 2018-11-06 Piotr Jarosik , Michał Byra , Marcin Lewandowski

WiFi and security pose both an issue and act as a growing presence in everyday life. Today's motions detection implementations are severely lacking in the areas of secrecy, scope, and cost. To combat this problem, we aim to develop a motion…

Signal Processing · Electrical Eng. & Systems 2019-08-23 Sadhana Lolla , Amy Zhao

Information about the spatiotemporal flow of humans within an urban context has a wide plethora of applications. Currently, although there are many different approaches to collect such data, there lacks a standardized framework to analyze…

Machine Learning · Computer Science 2020-12-23 Zann Koh , Yuren Zhou , Billy Pik Lik Lau , Chau Yuen , Bige Tuncer , Keng Hua Chong

Recently, the research of wireless sensing has achieved more intelligent results, and the intelligent sensing of human location and activity can be realized by means of WiFi devices. However, most of the current human environment perception…

Machine Learning · Computer Science 2019-03-14 Shangqing Liu , Yanchao Zhao , Fanggang Xue , Bing Chen , Xiang Chen