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Breathing rate (BR), minute ventilation (VE), and other respiratory parameters are essential for real-time patient monitoring in many acute health conditions, such as asthma. The clinical standard for measuring respiration, namely…

Signal Processing · Electrical Eng. & Systems 2020-11-26 Ridwan Alam , David B. Peden , John C. Lach

The patterns of inhalation and exhalation contain important physiological signals that can be used to anticipate human behavior, health trends, and vital parameters. Human activity recognition (HAR) is fundamentally connected to these vital…

Machine Learning · Computer Science 2025-09-08 Ashutosh Kumar Sinha , Ayush Patel , Mitul Dudhat , Pritam Anand , Rahul Mishra

Respirators provide protection from inhalation exposure to dangerous substances, such as chemicals and infectious particles, including SARS-Covid-laden droplets and aerosols. However, they are prone to exposure to stale air as the masks…

Fluid Dynamics · Physics 2023-05-17 Hana Salati , Patrick Warfield-McAlpine , David F Fletcher , Kiao Inthavong

An experimental testbed has been constructed to assess the capabilities of Light-Wave Sensing, a promising new vitals monitoring approach. A Light-Wave Sensing apparatus utilizes infrared radiation to contactlessly monitor the subtle…

Medical Physics · Physics 2023-11-08 Brenden Martin , Md Zobaer Islam , Carly Gotcher , Tyler Martinez , Sabit Ekin , John F. O'Hara

Respiratory diseases impose a significant burden on global health, with current diagnostic and management practices primarily reliant on specialist clinical testing. This work aims to develop machine learning-based algorithms to facilitate…

Machine Learning · Computer Science 2024-09-06 Negar Orangi-Fard , Alexandru Bogdan , Hersh Sagreiya

Objective: To develop an algorithm that can infer the severity level of a COPD patient's airflow limitation from tidal breathing data that is collected by a wearable device. Methods: Data was collected from 25 single visit adult volunteers…

Signal Processing · Electrical Eng. & Systems 2021-04-27 Kofi Odame , Graham Atkins , Maria Nyamukuru , Katherine Fearon

Respiratory diseases remain a leading cause of mortality worldwide, highlighting the need for faster and more accurate diagnostic tools. This work presents a novel approach leveraging digital stethoscope technology for automatic respiratory…

Signal Processing · Electrical Eng. & Systems 2024-03-19 Constantino Álvarez Casado , Manuel Lage Cañellas , Matteo Pedone , Xiaoting Wu , Le Nguyen , Miguel Bordallo López

Respiratory rate (RR) monitoring is integral to understanding physical and mental health and tracking fitness. Existing studies have demonstrated the feasibility of RR monitoring under specific user conditions (e.g., while remaining still,…

Human-Computer Interaction · Computer Science 2024-07-10 Yang Liu , Kayla-Jade Butkow , Jake Stuchbury-Wass , Adam Pullin , Dong Ma , Cecilia Mascolo

The health effects of air pollution have been subject to intense study in recent decades. Exposure to pollutants such as airborne particulate matter and ozone has been associated with increases in morbidity and mortality, especially with…

Human-Computer Interaction · Computer Science 2019-07-25 Nitish Nag , Vaibhav Pandey , Likhita Navali , Prateek Mohan , Ramesh Jain

Monitoring respiratory health with the use of channel state information (CSI) has shown promising results. Many existing methods focus on monitoring only the respiratory rate, while others focus on monitoring the motion of the chest as a…

Emerging Technologies · Computer Science 2025-08-01 James Rhodes , Lawrence Ong , Duy T. Ngo

Multiple-breath-washout (MBW) measurements are regarded as a sensitive technique which can reflect the ventilation inhomogeneity of respiratory airways. Typically nitrogen is used as the tracer gas and is washed out by pure oxygen in…

Medical Physics · Physics 2011-11-28 Jau-Yi Wang , Matt Suddards , John Owers-Bradley , Chris Mellor

This paper addresses the performance of systems which use commercial wireless devices to make bistatic RF channel measurements for non-contact respiration sensing. Published research has typically presented results from short controlled…

This study investigates the potential of using smartwatches with built-in microphone sensors for monitoring coughs and detecting various cough types. We conducted a study involving 32 participants and collected 9 hours of audio data in a…

Sound · Computer Science 2024-04-23 Pranay Jaiswal , Haroon R. Lone

Non-invasive estimation of respiratory physiology using computational algorithms promises to be a valuable technique for future clinicians to detect detrimental changes in patient pathophysiology. However, few clinical algorithms used to…

Quantitative Methods · Quantitative Biology 2021-09-22 Gregory Rehm , Jimmy Nguyen , Chelsea Gilbeau , Marc T Bomactao , Chen-Nee Chuah , Jason Adams

Respiratory ailments such as asthma, chronic obstructive pulmonary disease (COPD), pneumonia, and lung cancer are life-threatening. Respiration rate (RR) is a vital indicator of the wellness of a patient. Continuous monitoring of RR can…

Asthma is a chronic respiratory condition that affects millions of people worldwide. While this condition can be managed by administering controller medications through handheld inhalers, clinical studies have shown low adherence to the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-16 Davoud Shariat Panah , Alessandro N Franciosi , Cormac McCarthy , Andrew Hines

An estimated 300 million people worldwide suffer from asthma, and this number is expected to increase to 400 million by 2025. Approximately 250,000 people die prematurely each year from asthma out of which, almost all deaths are avoidable.…

Computers and Society · Computer Science 2018-04-13 Saksham Kukreja

Human respiratory rate and its pattern convey essential information about the physical and psychological states of the subject. Abnormal breathing can indicate fatal health issues leading to further diagnosis and treatment. Wireless…

Signal Processing · Electrical Eng. & Systems 2024-04-17 Md Zobaer Islam , Brenden Martin , Carly Gotcher , Tyler Martinez , John F. O'Hara , Sabit Ekin

Early detection of asthma in children is crucial to prevent long-term respiratory complications and reduce emergency interventions. This work presents an AI-powered diagnostic pipeline that leverages Googles Health Acoustic Representations…

Sound · Computer Science 2025-04-30 Abul Ehtesham , Saket Kumar , Aditi Singh , Tala Talaei Khoei

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