English
Related papers

Related papers: Respiration Rate Sensor Based on Fiber Cavity Atte…

200 papers

Vital sign monitoring plays a critical role in healthcare and well-being, as parameters such as respiration and heart rate offer valuable insights into an individual's physiological state. While wearable devices allow for continuous…

Signal Processing · Electrical Eng. & Systems 2025-09-15 Christian Eckrich , Abdelhak M. Zoubir , Vahid Jamali

This paper explores using RSS measurements on many links in a wireless network to estimate the breathing rate of a person, and the location where the breathing is occurring, in a home, while the person is sitting, laying down, standing, or…

Human-Computer Interaction · Computer Science 2023-07-19 Neal Patwari , Lara Brewer , Quinn Tate , Ossi Kaltiokallio , Maurizio Bocca

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

Respiratory rate (RR) serves as an indicator of various medical conditions, such as cardiovascular diseases and sleep disorders. These RR estimation methods were mostly designed for finger-based PPG collected from subjects in stationary…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Kianoosh Kazemi , Iman Azimi , Pasi Liljeberg , Amir M. Rahmani

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…

The monitoring of vital signs such as heart rate (HR) and respiratory rate (RR) during sleep is important for the assessment of sleep quality and detection of sleep disorders. Camera-based HR and RR monitoring gained popularity in sleep…

Signal Processing · Electrical Eng. & Systems 2024-01-18 Yingen Zhu , Jia Huang , Hongzhou Lu , Wenjin Wang

Wearable devices are becoming increasingly important, addressing needs in both the fitness and the medical markets. In this paper, we describe a novel sensing platform based on a hollow-core polyurethane optical fiber, operating through…

Signal Processing · Electrical Eng. & Systems 2023-07-25 Alessio Stefani , Ivan D. Rukhlenko , Antoine F. J. Runge , Maryanne C. J. Large , Simon C. Fleming

Received signal strength based respiration rate monitoring is emerging as an alternative non-contact technology. These systems make use of the radio measurements of short-range commodity wireless devices, which vary due to the inhalation…

Signal Processing · Electrical Eng. & Systems 2017-11-28 Hüseyin Yiğitler , Ossi Kaltiokallio , Roland Hostettler , Riku Jäntti , Neal Patwari , Simo Särkkä

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

Respiration waveforms are increasingly recognized as important biomarkers, offering insights beyond simple respiration rates, such as detecting breathing irregularities for disease diagnosis or monitoring breath patterns to guide…

Signal Processing · Electrical Eng. & Systems 2025-03-17 Ziqi Wang , Derek Hua , Wenjun Jiang , Tianwei Xing , Xun Chen , Mani Srivastava

Thispaper presents the design and realization of a context-aware wireless health monitoring system for recording the heartbeat (HR) and respiration (RR) rate based on an indirect measurement approach. The system consists of a contact-less…

Human-Computer Interaction · Computer Science 2019-07-22 Amir Javadpour , HamidrezaMemarzadeh-Tehran

In recent years, WiFi sensing has been recognized as a promising technology to bring respiratory monitoring into everyday homes, thanks to its contactless nature and ubiquitous availability. However, existing WiFi-based respiratory…

Signal Processing · Electrical Eng. & Systems 2026-04-23 Hefei Wang , Jianwei Liu , Yinghui He , Guanding Yu , Jinsong Han

Good quality sleep is essential for good health and sleep monitoring becomes a vital research topic. This paper provides a low cost, continuous and contactless WiFi-based vital signs (breathing and heart rate) monitoring method. In…

Human-Computer Interaction · Computer Science 2019-08-15 Yu Gu , Xiang Zhang , Zhi Liu , Fuji Ren

Breathing is one of the most important body functions because it provides it with oxygen, which is vital for energy production. In addition, the removal of carbon dioxide actively regulates the acid-base level, which is essential for the…

Signal Processing · Electrical Eng. & Systems 2022-10-18 Janosch Kunczik , Kerstin Hubbermann , Lucas Mösch , Andreas Follmann , Michael Czaplik , Carina Barbosa Pereira

Breathing is vital to life. Therefore, the real-time monitoring of breathing pattern of a patient is crucial to respiratory rehabilitation therapies such as magnetic resonance exams for respiratory-triggered imaging, chronic pulmonary…

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

Static cardiac imaging such as late gadolinium enhancement, mapping, or 3-D coronary angiography require prior information, e.g., the phase during a cardiac cycle with least motion, called resting phase (RP). The purpose of this work is to…

Radio signals are sensitive to changes in the environment, which for example is reflected on the received signal strength (RSS) measurements of low-cost wireless devices. This information has been used effectively in the past years e.g. in…

Networking and Internet Architecture · Computer Science 2013-07-09 Ossi Kaltiokallio , Hüseyin Yigitler , Riku Jäntti , Neal Patwari

Respiratory rate (RR) is a clinical sign representing ventilation. An abnormal change in RR is often the first sign of health deterioration as the body attempts to maintain oxygen delivery to its tissues. There has been a growing interest…

Machine Learning · Computer Science 2021-08-03 Seyed Amir Hossein Aqajari , Rui Cao , Amir Hosein Afandizadeh Zargari , Amir M. Rahmani

Non-contact estimation of respiratory pattern (RP) and respiration rate (RR) has multiple applications. Existing methods for RP and RR measurement fall into one of the three categories - (i) estimation through nasal air flow measurement,…

Computer Vision and Pattern Recognition · Computer Science 2017-04-26 A. P. Prathosh , Pragathi Praveena , Lalit K. Mestha , Sanjay Bharadwaj