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Cerebral arterial blood flow (CABF) can be investigated in few seconds without any synchronization by Real-Time phase contrast. Significant changes in CABF were found between expiration and inspiration during normal breathing of healthy…

Signal Processing · Electrical Eng. & Systems 2022-07-27 Pan Liu , Sidy Fall , Serge Metanbou , Olivier Balédent

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

The development of contactless respiration monitoring for infants could enable advances in the early detection and treatment of breathing irregularities, which are associated with neurodevelopmental impairments and conditions like sudden…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Liyang Song , Hardik Bishnoi , Sai Kumar Reddy Manne , Sarah Ostadabbas , Briana J. Taylor , Michael Wan

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

Recognition of respiratory distress through visual inspection is a life saving clinical skill. Clinicians can detect early signs of respiratory deterioration, creating a valuable window for earlier intervention. In this study, we evaluate…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Thomas Savage , Evan Madill

We consider the problem of modeling cardiovascular responses to physical activity and sleep changes captured by wearable sensors in free living conditions. We use an attentional convolutional neural network to learn parsimonious signatures…

Machine Learning · Computer Science 2018-12-06 Haraldur T. Hallgrímsson , Filip Jankovic , Tim Althoff , Luca Foschini

Several therapy routines require deep breathing exercises as a key component and patients undergoing such therapies must perform these exercises regularly. Assessing the outcome of a therapy and tailoring its course necessitates monitoring…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-20 Hassam Khan Wazir , Zaid Waghoo , Vikram Kapila

The past few years have witnessed the great potential of exploiting channel state information retrieved from commodity WiFi devices for respiration monitoring. However, existing approaches only work when the target is close to the WiFi…

Signal Processing · Electrical Eng. & Systems 2019-08-13 Youwei Zeng , Dan Wu , Jie Xiong , Enze Yi , Ruiyang Gao , Daqing Zhang

In this paper, we present a wireless ECG-derived Respiration Rate (RR) estimation using an autoencoder with a DCT Layer. The wireless wearable system records the ECG data of the subject and the respiration rate is determined from the…

Signal Processing · Electrical Eng. & Systems 2023-02-20 Hongyi Pan , Xin Zhu , Zhilu Ye , Pai-Yen Chen , Ahmet Enis Cetin

Motivation: In many fMRI studies, respiratory signals are often missing or of poor quality. Therefore, it could be highly beneficial to have a tool to extract respiratory variation (RV) waveforms directly from fMRI data without the need for…

Machine Learning · Computer Science 2024-05-02 Abdoljalil Addeh , Fernando Vega , Rebecca J. Williams , G. Bruce Pike , M. Ethan MacDonald

Elderly care is one of the many applications supported by real-time activity recognition systems. Traditional approaches use cameras, body sensor networks, or radio patterns from various sources for activity recognition. However, these…

Other Computer Science · Computer Science 2020-03-18 Liang Wang , Tao Gu , Xianping Tao , Jian Lu

The widespread emergence of the COVID-19 pandemic has transformed our lifestyle, and facial respirators have become an essential part of daily life. Nevertheless, the current respirators possess several limitations such as poor respirator…

Gait speed is a widely used indicator of functional health and mobility decline, yet in clinical practice it is commonly measured manually using a stopwatch, which limits scalability and measurement frequency. Privacy-preserving and…

Other Computer Science · Computer Science 2026-04-16 Natong Lin , Jiachen Wang , Lisa C. Barry , Song Han

Respiratory-gated radiation therapy (RGRT) has been used to minimize the dose to normal tissue in lung-cancer radiotherapy. The present research aims to improve the regularity of respiration in RGRT using a video coached respiration guiding…

Medical Physics · Physics 2015-03-13 Hyun Jeong Lee , Ji Woon Yea , Se An Oh

A malicious attacker could, by taking control of internet-of-things devices, use them to capture received signal strength (RSS) measurements and perform surveillance on a person's vital signs, activities, audio in their environment, and…

Signal Processing · Electrical Eng. & Systems 2019-05-13 Alemayehu Solomon Abrar , Neal Patwari , Aniqua Baset , Sneha Kumar Kasera

Purpose: To develop a fully automatic method for extraction and directionality determination of respiratory signal in free-breathing, real-time (RT) cardiac MRI. Methods: The respiratory signal is extracted by a principal component analysis…

Image and Video Processing · Electrical Eng. & Systems 2020-12-08 Chong Chen , Yingmin Liu , Orlando P. Simonetti , Rizwan Ahmad

Radio frequency (RF) signals have facilitated the development of non-contact human monitoring tasks, such as vital signs measurement, activity recognition, and user identification. In some specific scenarios, an RF signal analysis framework…

Using mobile phone video of the fingertip as a data source for estimating vital signs such as heart rate (HR) and respiratory rate (RR) during daily life has long been suggested. While existing literature indicates that these estimates are…

Signal Processing · Electrical Eng. & Systems 2025-07-01 Ibne Farabi Shihab

Obstructive sleep apnoea (OSA) is a prevalent condition with significant health consequences, yet many patients remain undiagnosed due to the complexity and cost of over-night polysomnography. Acoustic-based screening provides a scalable…

Sound · Computer Science 2026-02-03 Xiaolei Xu , Chaoyue Niu , Guy J. Brown , Hector Romero , Ning Ma

Pig vital sign monitoring (e.g., estimating the heart rate (HR) and respiratory rate (RR)) is essential to understand the stress level of the sow and detect the onset of parturition. It helps to maximize peri-natal survival and improve…

Signal Processing · Electrical Eng. & Systems 2022-12-08 Yiwen Dong , Jesse R Codling , Gary Rohrer , Jeremy Miles , Sudhendu Sharma , Tami Brown-Brandl , Pei Zhang , Hae Young Noh
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