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Traditional echocardiographic parameters such as ejection fraction (EF) and global longitudinal strain (GLS) have limitations in the early detection of cardiac dysfunction. EF often remains normal despite underlying pathology, and GLS is…

Machine Learning · Computer Science 2025-07-21 Beka Begiashvili , Carlos J. Fernandez-Candel , Matías Pérez Paredes

Radar-based non-contact respiration rate (RR) measurement has become increasingly popular due to its convenience, non-intrusiveness, and low cost. However, it is still quite challenging to accurately acquire vital signs estimation in…

Signal Processing · Electrical Eng. & Systems 2026-04-08 Chendong Xu , Shuai Yao , Haoying Bao , Chiyuan Ma , Qisong Wu

Epicardial adipose tissue (EAT) is known for its pro-inflammatory properties and association with Coronavirus Disease 2019 (COVID-19) severity. However, current EAT segmentation methods do not consider positional information. Additionally,…

PURPOSE To develop free-running multi-echo GRE for cardiac- and respiratory-motion-resolved whole-heart fat fraction quantification. METHODS Multi-echo readouts optimized for water-fat separation and quantification were integrated within a…

Breathing is an essential part of human survival, which carries information about a person's physiological and psychological state. Generally, breath boundaries are marked by experts before using for any task. An unsupervised algorithm for…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-10 Shivani Yadav , Dipanjan Gope , Uma Maheswari K. , Prasanta Kumar Ghosh

Remote patient monitoring based on wearable single-lead electrocardiogram (ECG) devices has significant potential for enabling the early detection of heart disease, especially in combination with artificial intelligence (AI) approaches for…

Signal Processing · Electrical Eng. & Systems 2024-04-30 Aruna Mohan , Danne Elbers , Or Zilbershot , Fatemeh Afghah , David Vorchheimer

Respiration is a critical vital sign for infants, and continuous respiratory monitoring is particularly important for newborns. However, neonates are sensitive and contact-based sensors present challenges in comfort, hygiene, and skin…

Image and Video Processing · Electrical Eng. & Systems 2023-07-26 Sai Kumar Reddy Manne , Shaotong Zhu , Sarah Ostadabbas , Michael Wan

Respiratory disease, the third leading cause of deaths globally, is considered a high-priority ailment requiring significant research on identification and treatment. Stethoscope-recorded lung sounds and artificial intelligence-powered…

Sound · Computer Science 2024-05-15 Whenty Ariyanti , Kai-Chun Liu , Kuan-Yu Chen , Yu Tsao

Breathing disorders such as sleep apnea is a critical disorder that affects a large number of individuals due to the insufficient capacity of the lungs to contain/exchange oxygen and carbon dioxide to ensure that the body is in the stable…

Machine Learning · Computer Science 2022-08-30 Daniel Minati , Ludwik Sams , Karen Li , Bo Ji , Krishna Vardhan

Using machine learning algorithms for the rapid diagnosis and detection of the COVID-19 pandemic and isolating the patients from crowded environments are very important to controlling the epidemic. This study aims to develop a point-of-care…

This paper aims to provide reliable estimates for the COVID-19 contact rate of a Susceptible-Infected-Recovered (SIR) model. From observable data on confirmed, recovered, and deceased cases, a noisy measurement for the contact rate can be…

Econometrics · Economics 2021-02-22 Tobias Hartl

This study proposes a method for radar-based identification of individuals using a combination of their respiratory and heartbeat features. In the proposed method, the target individual's respiratory features are extracted using the…

Signal Processing · Electrical Eng. & Systems 2024-12-18 Haruto Kobayashi , Yuji Tanaka , Takuya Sakamoto

Non-invasive in vivo sensing of the lung with light would help diagnose and monitor pulmonary disorders (caused by e.g. COVID-19, emphysema, immature lung tissue in infants). We investigated the possibility to probe the lung with time…

Monitoring the electrical pulse of fetal heart through a non-invasive fetal electrocardiogram (fECG) can easily detect abnormalities in the developing heart to significantly reduce the infant mortality rate and post-natal complications. Due…

Real-time vital sign monitoring is gaining immense significance not only in the medical field but also in personal health management. Facing the needs of different application scenarios of the smart and healthy city in the future, the…

Systems and Control · Electrical Eng. & Systems 2024-05-27 Dingding Liang , Yang Chen , Jiawei Gao , Taixia Shi , Jianping Yao

Non-contact vital sign detection is a required application nowadays in many fields as patient monitoring and static human detection. Within the last decade, radar has been introduced as a smart and convenient sensor for non-contact…

Signal Processing · Electrical Eng. & Systems 2017-11-28 Sherif Abdulatif , Fady Aziz , Pelin Altiner , Bernhard Kleiner , Urs Schneider

EEG-based workload estimation technology provides a real time means of assessing mental workload. Such technology can effectively enhance the performance of the human-machine interaction and the learning process. When designing workload…

Human-Computer Interaction · Computer Science 2016-11-15 Mahnaz Arvaneh , Alberto Umilta , Ian H. Robertson

In the process of patient diagnosis, non-invasive measurements are widely used due to their low risks and quick results. Electrocardiogram (ECG), as a non-invasive method to collect heart activities, is used to diagnose cardiac conditions.…

Machine Learning · Computer Science 2025-12-11 Yuhao Xu , Jiaying Lu , Sirui Ding , Defu Cao , Xiao Hu , Carl Yang

The study reported herein attempts to understand the neural mechanisms engaged in the conscious control of breathing and breath-hold. The variations in the electroencephalogram (EEG) based functional connectivity (FC) of the human brain…

Signal Processing · Electrical Eng. & Systems 2023-12-18 Anusha A. S. , Pradeep Kumar G. , A. G. Ramakrishnan

Biomedical signals often comprise multiple non-sinusoidal oscillatory components whose amplitude modulation (AM) and instantaneous frequency (IF) may themselves be governed by additional (second-order) oscillatory dynamics with time-varying…

Applications · Statistics 2026-05-05 Jennifer Laine , Hau-Tieng Wu