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Radar sensors can be used for analyzing the induced frequency shifts due to micro-motions in both range and velocity dimensions identified as micro-Doppler ($\boldsymbol{\mu}$-D) and micro-Range ($\boldsymbol{\mu}$-R), respectively.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-13 Sherif Abdulatif , Qian Wei , Fady Aziz , Bernhard Kleiner , Urs Schneider

Digital twin technologies help practitioners simulate, monitor, and predict undesirable outcomes in-silico, while avoiding the cost and risks of conducting live simulation exercises. Virtual reality (VR) based digital twin technologies are…

Machine Learning · Computer Science 2025-04-01 Chathika Gunaratne , Mason Stott , Debraj De , Gautam Malviya Thakur , Chris Young

Millimeter-wave (mmWave) radars are being increasingly integrated in commercial vehicles to support new Adaptive Driver Assisted Systems (ADAS) features that require accurate location and Doppler velocity estimates of objects, independent…

Signal Processing · Electrical Eng. & Systems 2023-01-24 Xiangyu Gao , Sumit Roy , Guanbin Xing , Sian Jin

Falls are a leading cause of injury and loss of independence among older adults. Vision-based fall prediction systems offer a non-invasive solution to anticipate falls seconds before impact, but their development is hindered by the scarcity…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Md Fokhrul Islam , Sajeda Al-Hammouri , Christopher J. Arellano , Kavan Hazeli , Heman Shakeri

Embodying the principle of simulation intelligence, digital twin (DT) systems construct and maintain a high-fidelity virtual model of a physical system. This paper focuses on ray tracing (RT), which is widely seen as an enabling technology…

Signal Processing · Electrical Eng. & Systems 2024-05-16 Clement Ruah , Osvaldo Simeone , Jakob Hoydis , Bashir Al-Hashimi

Human Activity Recognition has gained significant attention due to its diverse applications, including ambient assisted living and remote sensing. Wearable sensor-based solutions often suffer from user discomfort and reliability issues,…

This study presents a comprehensive experimental assessment of a low-cost frequency-modulated continuous-wave (FMCW) multiple-input multiple-output (MIMO) radar for non-contact vital sign monitoring, focusing on respiratory rate (RR) and…

Emerging Technologies · Computer Science 2026-03-11 Silvia Mura , Davide Scazzoli , Lorenzo Fineschi , Maurizio Magarini

In recent years, the occurrence of falls has increased and has had detrimental effects on older adults. Therefore, various machine learning approaches and datasets have been introduced to construct an efficient fall detection algorithm for…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Thao V. Ha , Hoang Nguyen , Son T. Huynh , Trung T. Nguyen , Binh T. Nguyen

This paper compares three feature representation techniques used to represent resting state functional magnetic resonance (fMRI) scans. The proposed models of feature representation consider the time averaged fMRI scans as raw…

Neurons and Cognition · Quantitative Biology 2022-02-07 Bhaskar Sen

Falls represent a significant cause of injury among the elderly population. Extensive research has been devoted to the utilization of wearable IMU sensors in conjunction with machine learning techniques for fall detection. To address the…

Quantitative Methods · Quantitative Biology 2023-10-18 Jie Tang , Bin He , Junkai Xu , Tian Tan , Zhipeng Wang , Yanmin Zhou , Shuo Jiang

Recently, deep neural networks (DNNs) have been the subject of intense research for the classification of radio frequency (RF) signals, such as synthetic aperture radar (SAR) imagery or micro-Doppler signatures. However, a fundamental…

Signal Processing · Electrical Eng. & Systems 2018-11-21 Mehmet Saygin Seyfioglu , Baris Erol , Sevgi Zubeyde Gurbuz , Moeness G. Amin

Convolutional neural networks have often been proposed for processing radar Micro-Doppler signatures, most commonly with the goal of classifying the signals. The majority of works tend to disregard phase information from the complex…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Mikolaj Czerkawski , Carmine Clemente , Craig Michie , Christos Tachtatzis

The large number and scale of natural and man-made disasters have led to an urgent demand for technologies that enhance the safety and efficiency of search and rescue teams. Semi-autonomous rescue robots are beneficial, especially when…

Signal Processing · Electrical Eng. & Systems 2024-01-15 Christian A. Schroth , Christian Eckrich , Ibrahim Kakouche , Stefan Fabian , Oskar von Stryk , Abdelhak M. Zoubir , Michael Muma

Fall is one of the major health threats and obstacles to independent living for elders, timely and reliable fall detection is crucial for mitigating the effects of falls. In this paper, leveraging the fine-grained Channel State Information…

Human-Computer Interaction · Computer Science 2015-07-07 Daqing Zhang , Hao Wang , Yasha Wang , Junyi Ma

Falls are a major cause of injuries and deaths among older adults worldwide. Accurate fall detection can help reduce potential injuries and additional health complications. Different types of video modalities can be used in a home setting…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Stefan Denkovski , Shehroz S. Khan , Alex Mihailidis

Micro-Doppler signature is a potent feature that has been used for target identification and micro-motion parameter estimation. The extraction of high frequency micro-Doppler signature from frequency modulated continuous wave (FMCW) radar…

Signal Processing · Electrical Eng. & Systems 2022-04-21 Soorya Peter , Vinod Veera Reddy

This paper presents a novel micro-Doppler energy-based framework for robust multi-target vital signs monitoring using 77-GHz Frequency-Modulated Continuous-Wave (FMCW) radar. Unlike conventional phase-based methods that are susceptible to…

Signal Processing · Electrical Eng. & Systems 2025-10-23 Chenxing Tan , Yuguan Hou , Hao Wang , Zhonghao Yuan

Frequency Modulated Continuous Wave (FMCW) radar is a promising sensor for aided inertial navigation, due to its robustness in environments that challenge traditional alternatives, such as LiDAR and vision. However, its widespread adoption…

Robotics · Computer Science 2026-05-05 Morten Nissov , Kostas Alexis

Fall detection is a serious healthcare issue that needs to be solved. Falling without quick medical intervention would lower the chances of survival for the elderly, especially if living alone. Hence, the need is there for developing fall…

Networking and Internet Architecture · Computer Science 2021-05-21 Ayman Al-Kababji , Abbes Amira , Faycal Bensaali , Abdulah Jarouf , Lisan Shidqi , Hamza Djelouat

Falls have serious consequences and are prevalent in acute hospitals and nursing homes caring for older people. Most falls occur in bedrooms and near the bed. Technological interventions to mitigate the risk of falling aim to automatically…

Computers and Society · Computer Science 2020-03-20 Michael Chesser , Asangi Jayatilaka , Renuka Visvanathan , Christophe Fumeaux , Alanson Sample , Damith C. Ranasinghe