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Related papers: Wi-Fi CSI based Behavior Recognition: From Signals…

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WiFi-based sensing has aroused immense attention over recent years. The rationale is that the signal fluctuations caused by humans carry the information of human behavior which can be extracted from the channel state information of WiFi.…

Machine Learning · Computer Science 2021-11-30 Xie Zhang , Chengpei Tang , Yasong An , Kang Yin

The in-depth analysis of human behavior has been increasingly recognized as a crucial means for disclosing interior driving forces, causes and impact on businesses in handling many challenging issues. The modeling and analysis of behaviors…

Social and Information Networks · Computer Science 2020-07-31 Longbing Cao

The vast proliferation of sensor devices and Internet of Things enables the applications of sensor-based activity recognition. However, there exist substantial challenges that could influence the performance of the recognition system in…

Human-Computer Interaction · Computer Science 2021-01-25 Kaixuan Chen , Dalin Zhang , Lina Yao , Bin Guo , Zhiwen Yu , Yunhao Liu

Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these…

Robotics · Computer Science 2017-09-20 Fahimeh Rezazadegan , Sareh Shirazi , Ben Upcroft , Michael Milford

This paper presents a novel multiband passive sensing system that leverages IEEE 802.11bf Wi-Fi signals for environmental sensing, focusing on both sub-7 GHz and millimeter-wave (mmWave) bands. By combining Channel State Information (CSI)…

In recent years, Channel State Information (CSI), recognized for its fine-grained spatial characteristics, has attracted increasing attention in WiFi-based indoor localization. However, despite its potential, CSI-based approaches have yet…

Human-Computer Interaction · Computer Science 2025-04-25 Tianyu Zhang , Dongheng Zhang , Ruixu Geng , Xuecheng Xie , Shuai Yang , Yan Chen

The development of computer technology has been rapid. Not so long ago, the first computer was developed which was large and bulky. Now, the latest generation of smartphones has a calculation power, which would have been considered those of…

Human-Computer Interaction · Computer Science 2017-06-15 Kristof Friess , H. C. Volker Herwig

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

Wi-Fi Channel State Information (CSI) has emerged as a promising non-line-of-sight sensing modality for human and robotic activity recognition. However, prior work has predominantly relied on CSI amplitude while underutilizing phase…

Robotics · Computer Science 2026-03-11 Rojin Zandi , Hojjat Salehinejad , Milad Siami

Brain-Computer Interface (BCI) technology facilitates direct communication between the human brain and external devices, representing a substantial advancement in human-machine interaction. This review provides an in-depth analysis of…

Human-Computer Interaction · Computer Science 2025-03-24 Yifan Wang , Cheng Jiang , Chenzhong Li

With advances in data-driven machine learning research, a wide variety of prediction models have been proposed to capture spatio-temporal features for the analysis of video streams. Recognising actions and detecting action transitions…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Harshala Gammulle , David Ahmedt-Aristizabal , Simon Denman , Lachlan Tychsen-Smith , Lars Petersson , Clinton Fookes

Wireless sensing technologies become increasingly prevalent due to the ubiquitous nature of wireless signals and their inherent privacy-friendly characteristics. Device-free personnel identity recognition, a prevalent application in…

Signal Processing · Electrical Eng. & Systems 2024-05-07 Jichen Bian , Chong Tan , Peiyao Tang , Min Zheng

As Wi-Fi becomes ubiquitous in public and private spaces, it becomes natural to leverage its intrinsic ability to sense the surrounding environment to implement groundbreaking wireless sensing applications such as human presence detection,…

Networking and Internet Architecture · Computer Science 2024-08-27 Francesca Meneghello , Cheng Chen , Carlos Cordeiro , Francesco Restuccia

Accurate channel state information (CSI) underpins reliable and efficient wireless communication. However, acquiring CSI via pilot estimation incurs substantial overhead, especially in massive multiple-input multiple-output (MIMO) systems…

Information Theory · Computer Science 2025-12-05 Guangming Liang , Mingjie Yang , Dongzhu Liu , Paul Henderson , Lajos Hanzo

Human action recognition is an important application domain in computer vision. Its primary aim is to accurately describe human actions and their interactions from a previously unseen data sequence acquired by sensors. The ability to…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Hieu H. Pham , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A. Velastin

Human Computer Interaction (HCI) is a field in which developer makes a user friendly system. User can interact with a computer system without using any conventional peripheral devices. Marker is used to recognize hand movement accurately &…

Human-Computer Interaction · Computer Science 2014-02-05 Kinjal N. Shah , Kirit R. Rathod , Shardul J. Agravat

Understanding human actions is critical for advancing behavior analysis in human-robot interaction. Particularly in tasks that demand quick and proactive feedback, robots must recognize human actions as early as possible from incomplete…

Robotics · Computer Science 2026-05-01 Yongpeng Cao , Masahiro Hirano , Hyuno Kim , Yuji Yamakawa

WiFi-based human activity recognition (HAR) holds significant application potential across various fields. To handle dynamic environments where new activities are continuously introduced, WiFi-based HAR systems must adapt by learning new…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Rong Li , Tao Deng , Siwei Feng , Mingjie Sun , Juncheng Jia

Wireless Fidelity or Wi-Fi, has completely transfigured wireless networking by offering a smooth connection to the internet and networks, particularly when dealing with enclosed environments. As with the majority of wireless technology, it…

Emerging Technologies · Computer Science 2025-02-12 Aditya Mitra , Anisha Ghosh , Sibi Chakkaravarthy S , Devi Priya VS

Device free activity recognition and monitoring has become a promising research area with increasing public interest in pattern of life monitoring and chronic health conditions. This paper proposes a novel framework for in-home Wi-Fi…

Other Computer Science · Computer Science 2016-11-08 Qingchao Chen , Bo Tan , Kevin Chetty , Karl Woodbridge