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This study investigates fall risk prediction in older adults using various machine learning models trained on accelerometric, non-accelerometric, and combined data from 146 participants. Models combining both data types achieved superior…

Freezing of gait (FOG) is a common and debilitating gait impairment in Parkinson's disease. Further insight into this phenomenon is hampered by the difficulty to objectively assess FOG. To meet this clinical need, this paper proposes an…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Benjamin Filtjens , Pieter Ginis , Alice Nieuwboer , Peter Slaets , Bart Vanrumste

Gait analysis, an expanding research area, employs non invasive sensors and machine learning techniques for a range of applicatio ns. In this study, we concentrate on gait analysis for detecting cognitive decline in Parkinson's disease (PD)…

Signal Processing · Electrical Eng. & Systems 2023-06-13 Abdullah Alharthi

This article contributes to the search for a notion of postural style, focusing on the issue of classifying subjects in terms of how they maintain posture. Longer term, the hope is to make it possible to determine on a case by case basis…

Applications · Statistics 2012-09-28 Antoine Chambaz , Christophe Denis

Background: Photoplethysmography (PPG), increasingly available through wearable devices, provides a non-invasive means of monitoring human hemodynamics. In this study, we introduce artificial intelligence-derived photoplethysmography…

Signal Processing · Electrical Eng. & Systems 2025-09-26 Guangkun Nie , Qinghao Zhao , Gongzheng Tang , Yaxin Li , Shenda Hong

Compared to in-clinic balance training, in-home training is not as effective. This is, in part, due to the lack of feedback from physical therapists (PTs). Here, we analyze the feasibility of using trunk sway data and machine learning (ML)…

Computers and Society · Computer Science 2019-06-14 Tian Bao , Brooke N. Klatt , Susan L. Whitney , Kathleen H. Sienko , Jenna Wiens

Falling is a commonly occurring mishap with elderly people, which may cause serious injuries. Thus, rapid fall detection is very important in order to mitigate the severe effects of fall among the elderly people. Many fall monitoring…

Remote photoplethysmography (rPPG) monitors heart rate without requiring physical contact, which allows for a wide variety of applications. Deep learning-based rPPG have demonstrated superior performance over the traditional approaches in…

Computer Vision and Pattern Recognition · Computer Science 2022-05-12 Ze Yang , Haofei Wang , Feng Lu

Photoplethysmography (PPG) Sensors, widely deployed in smartwatches, offer a simple and non-invasive authentication approach for daily use. However, PPG authentication faces reliability issues due to motion artifacts from physical activity…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Jiankai Tang , Jiacheng Liu , Renling Tong , Kai Zhu , Zhe Li , Xin Yi , Junliang Xing , Yuanchun Shi , Yuntao Wang

Physical activity level (PAL) in older adults can enhance healthy aging, improve functional capacity, and prevent diseases. It is known that human annotations of PAL can be affected by subjectivity and inaccuracy. Recently developed smart…

Human-Computer Interaction · Computer Science 2019-01-23 A. L. Alfeo , M. G. C. A. Cimino , G. Vaglini

This paper shows how the dynamics of the PhotoPlethysmoGraphic (PPG) signal, an easily accessible biological signal from which valuable diagnostic information can be extracted, of young and healthy individuals performs at different…

Signal Processing · Electrical Eng. & Systems 2020-06-11 Javier de Pedro-Carracedo , David Fuentes-Jimenez , Ana M. Ugena , Ana P. Gonzalez-Marcos

The stage and severity of Parkinson's disease (PD) is an important factor to consider for taking effective therapeutic decisions. Although the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) provides an…

Applications · Statistics 2018-05-30 R. Prashanth , Sumantra Dutta Roy

Photoplethysmogram (PPG) signals are easily contaminated by motion artifacts in real-world settings, despite their widespread use in Internet-of-Things (IoT) based wearable and smart health devices for cardiovascular health monitoring. This…

Signal Processing · Electrical Eng. & Systems 2023-10-11 Yali Zheng , Chen Wu , Peizheng Cai , Zhiqiang Zhong , Hongda Huang , Yuqi Jiang

This work presents an efficient algorithmic framework for real-time identification, classification, and evaluation of human physiotherapy exercises using mobile devices. The proposed method interprets a kinetic movement as a sequence of…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Stylianos Kandylakis , Christos Orfanopoulos , Georgios Siolas , Panayiotis Tsanakas

Cumulative exposure to repetitive and forceful activities may lead to musculoskeletal injuries which not only reduce workers' efficiency and productivity, but also affect their quality of life. Thus, widely accessible techniques for…

Human-Computer Interaction · Computer Science 2018-09-26 Vaneet Aggarwal , Hamed Asadi , Mayank Gupta , Jae Joong Lee , Denny Yu

Camera-based photoplethysmography (PPG) obtained from smartphones has shown great promise for personalized healthcare and secure authentication. This paper presents a multimodal biometric system that integrates PPG signals extracted from…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Xue Xian Zheng , M. M. Ur Rahma , Bilal Taha , Mudassir Masood , Dimitrios Hatzinakos , Tareq Al-Naffouri

Sleep disorder diagnosis relies on the analysis of polysomnography (PSG) records. As a preliminary step of this examination, sleep stages are systematically determined. In practice, sleep stage classification relies on the visual inspection…

Machine Learning · Statistics 2021-06-21 Antoine Guillot , Valentin Thorey

Remote Photoplethysmography (rPPG) is a fast-growing technique of vital sign estimation by analyzing video of a person. Several major phenomena affecting rPPG signals have been studied (e.g. video compression, distance from person to…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Yuriy Mironenko , Konstantin Kalinin , Mikhail Kopeliovich , Mikhail Petrushan

Photoplethysmography (PPG) signals, which measure changes in blood volume in the skin using light, have recently gained attention in biometric authentication because of their non-invasive acquisition, inherent liveness detection, and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Arfina Rahman , Mahesh Banavar

As a unique biometric that can be perceived at a distance, gait has broad applications in person authentication, social security, and so on. Existing gait recognition methods suffer from changes in viewpoint and clothing and barely consider…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Jingqi Li , Jiaqi Gao , Yuzhen Zhang , Hongming Shan , Junping Zhang