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This study proposes an accurate method to estimate human body orientation using a millimeter-wave radar system. Body displacement is measured from the phase of the radar echo, which is analyzed to obtain features associated with the…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Wenxu Sun , Shunsuke Iwata , Yuji Tanaka , Takuya Sakamoto

By 2050, a quarter of the US population will be over the age of 65 with greater than a 40% risk of developing life-altering neuromusculoskeletal pathologies. The potential of wearables, such as Apple AirPods and hearing aids, to provide…

Human-Computer Interaction · Computer Science 2025-03-18 Alexandra Hammerberg , Samuel Grunblatt , Patricia Kramer

According to the World Health Organization, the rate of people aged 60 or more is growing faster than any other age group in almost every country, and this trend is not going to change in a near future. Since senior citizens are at high…

Other Computer Science · Computer Science 2015-01-23 Daniele Riboni , Claudio Bettini , Gabriele Civitarese , Zaffar Haider Janjua , Rim Helaoui

Robotics system for rehabilitation of movement disorders and motion assistance are gaining increased intention. In this scenario estimation of ground contact is an active area of research in robotics and healthcare. This article addresses…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Muhammad Junaid Umer , Qaiser Riaz

Micro-Doppler-based target classification capabilities of the automotive radars can provide high reliability and short latency to the future active safety automotive features. A large number of pedestrians surrounding vehicle in practical…

Signal Processing · Electrical Eng. & Systems 2018-08-02 Petro Khomchuk , Inna Stainvas , Igal Bilik

This study proposes a method for simulating signals received by frequency-modulated continuous-wave radar during respiratory monitoring, using human body geometry and displacement data acquired via a depth camera. Unlike previous studies…

Signal Processing · Electrical Eng. & Systems 2025-07-21 Kimitaka Sumi , Takuya Sakamoto

The vertical ground reaction force (vGRF) and its characteristic weight acceptance and push-off peaks measured during walking are important for gait and biomechanical analysis. Current wearable vGRF estimation methods suffer from drifting…

Human-Computer Interaction · Computer Science 2025-01-15 Femi Olugbon , Nozhan Ghoreishi , Ming-Chun Huang , Wenyao Xu , Diliang Chen

Physical activity during hip fracture rehabilitation is essential for mitigating long-term functional decline in geriatric patients. However, it is rarely quantified in clinical practice. Existing continuous monitoring systems with…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Shuhao Que , Dieuwke van Dartel , Ilse Heeringa , Han Hegeman , Miriam Vollenbroek-Hutten , Ying Wang

In this work, we present a novel framework for on-line human gait stability prediction of the elderly users of an intelligent robotic rollator using Long Short Term Memory (LSTM) networks, fusing multimodal RGB-D and Laser Range Finder…

In this research article, we have reported periodic cellular automata rules for different gait state prediction and classification of the gait data using extreme machine Leaning (ELM). This research is the first attempt to use cellular…

Robotics · Computer Science 2021-05-11 Vijay Bhaskar Semwal , Neha Gaud , G. C. Nandi

This study explored an indoor system for tracking multiple humans and detecting falls, employing three Millimeter-Wave radars from Texas Instruments. Compared to wearables and camera methods, Millimeter-Wave radar is not plagued by mobility…

Signal Processing · Electrical Eng. & Systems 2024-06-10 Zichao Shen , Jose Nunez-Yanez , Naim Dahnoun

Fall detection, particularly critical for high-risk demographics like the elderly, is a key public health concern where timely detection can greatly minimize harm. With the advancements in radio frequency technology, radar has emerged as a…

Robotics · Computer Science 2024-02-07 Shuting Hu , Siyang Cao , Nima Toosizadeh , Jennifer Barton , Melvin G. Hector , Mindy J. Fain

Hikers and hillwalkers typically use the gradient in the direction of travel (walking slope) as the main variable in established methods for predicting walking time (via the walking speed) along a route. Research into fell-running has…

Applications · Statistics 2023-12-27 Andrew Wood , William Mackaness , T. Ian Simpson , J. Douglas Armstrong

The advent of IoT has enabled the design of connected and integrated smart health monitoring systems. These smart health monitoring systems could be realized in a smart home context to render long-term care to the elderly population. In…

Signal Processing · Electrical Eng. & Systems 2021-07-21 Rajdeep Kumar Nath , Himanshu Thapliyal

Continuous monitoring of vital signs is of paramount importance. These critical physiological parameters play a crucial role in the early detection of conditions that affect the well-being of a patient. However, conventional contact-based…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Gabriel Beltrão , Udo Schroeder

Machine learning (ML) models have proven effective in classifying gait analysis data, e.g., binary classification of young vs. older adults. ML models, however, lack in providing human understandable explanations for their predictions. This…

Walking speed estimation is an essential component of mobile apps in various fields such as fitness, transportation, navigation, and health-care. Most existing solutions are focused on specialized medical applications that utilize body-worn…

Computers and Society · Computer Science 2019-03-07 Aawesh Shrestha , Myounggyu Won

Gait synchronization in pedestrians is influenced by biomechanical, environmental, and cognitive factors. Studying gait in ecological settings provides insights often missed in controlled experiments. This study tackles the challenges of…

Physics and Society · Physics 2025-03-14 Adrien Gregorj , Zeynep Yücel , Francesco Zanlugo , Takayuki Kanda

Measurement of stride-related, biomechanical parameters is the common rationale for objective gait impairment scoring. State-of-the-art double integration approaches to extract these parameters from inertial sensor data are, however,…

In this work, we introduce an innovative approach to estimate the vital signs of multiple human subjects simultaneously in a non-contact way using a Frequency Modulated Continuous Wave (FMCW) radar-based system. Traditional vital sign…

Systems and Control · Electrical Eng. & Systems 2025-12-01 Jewel Benny , Narahari N. Moudhgalya , Mujeev Khan , Hemant Kumar Meena , Mohd Wajid , Abhishek Srivastava