Results 41 to 50 of about 275,664 (215)

Non-Contact SpO2 Prediction System Based on a Digital Camera

Applied Sciences, 2021
Patients with the COVID-19 condition require frequent and accurate blood oxygen saturation (SpO2) monitoring. The existing pulse oximeters, however, require contact-based measurement using clips or otherwise fixed sensor units or need dedicated hardware ...
Ali Al-Naji, Ghaidaa A. Khalid, Jinan F. Mahdi, Javaan Chahl   +3 more
doaj   +1 more source

Protocol of the SOMNIA project : an observational study to create a neurophysiological database for advanced clinical sleep monitoring [PDF]

, 2019
Introduction Polysomnography (PSG) is the primary tool for sleep monitoring and the diagnosis of sleep disorders. Recent advances in signal analysis make it possible to reveal more information from this rich data source.
Arsenali, Bruno, Bergmans, Jan W. M., Fonseca, Pedro, Haakma, Reinder, Hoondert, Bertram, Krijn, Roy, Lauwerijssen, Coen, Leufkens, Tim R., Maass, Henning, Overeem, Sebastiaan, Pevernagie, Dirk, Pillen, Sigrid, van den Heuvel, Leonie, van Dijk, Johannes P., van Gilst, Merel M., van Sloun, Ruud J. G., Vandenbussche, Nele   +16 more
core   +2 more sources

Contact-Less Real-Time Monitoring of Cardiovascular Risk Using Video Imaging and Fuzzy Inference Rules

Information, 2018
Conventional methods for measuring cardiovascular parameters use skin contact techniques requiring a measuring device to be worn by the user. To avoid discomfort of contact devices, camera-based techniques using photoplethysmography have been recently ...
Gabriella Casalino, Giovanna Castellano, Vincenzo Pasquadibisceglie, Gianluca Zaza   +3 more
doaj   +1 more source

Contactless Camera-Based Heart Rate and Respiratory Rate Monitoring Using AI on Hardware

Sensors, 2023
Detecting vital signs by using a contactless camera-based approach can provide several advantages over traditional clinical methods, such as lower financial costs, reduced visit times, increased comfort, and enhanced safety for healthcare professionals ...
Dimitrios Kolosov, Vasilios Kelefouras, Pandelis Kourtessis, Iosif Mporas   +3 more
doaj   +1 more source

Contactless Vital Sign Monitoring System for In-Vehicle Driver Monitoring Using a Near-Infrared Time-of-Flight Camera

Applied Sciences, 2022
We demonstrate a Contactless Vital Sign Monitoring (CVSM) system and road-test the system for in-cabin driver monitoring using a near-infrared indirect Time-of-Flight (ToF) camera.
Kaiwen Guo, Tianqu Zhai, Manoj H. Purushothama, Alexander Dobre, Shawn Meah, Elton Pashollari, Aabhaas Vaish, Carl DeWilde, Mohammed N. Islam   +8 more
doaj   +1 more source

Deep Learning-Based Non-Contact IPPG Signal Blood Pressure Measurement Research

Sensors, 2023
In this paper, a multi-stage deep learning blood pressure prediction model based on imaging photoplethysmography (IPPG) signals is proposed to achieve accurate and convenient monitoring of human blood pressure.
Hanquan Cheng, Jiping Xiong, Zehui Chen, Jingwei Chen   +3 more
doaj   +1 more source

Contactless facial video recording with deep learning models for the detection of atrial fibrillation

Scientific Reports, 2022
Atrial fibrillation (AF) is often asymptomatic and paroxysmal. Screening and monitoring are needed especially for people at high risk. This study sought to use camera-based remote photoplethysmography (rPPG) with a deep convolutional neural network (DCNN)
Yu Sun, Yin-Yin Yang, Bing-Jhang Wu, Po-Wei Huang, Shao-En Cheng, Bing-Fei Wu, Chun-Chang Chen   +6 more
doaj   +1 more source

Fusion Method to Estimate Heart Rate from Facial Videos Based on RPPG and RBCG

Sensors, 2021
Remote sensing of vital signs has been developed to improve the measurement environment by using a camera without a skin-contact sensor. The camera-based method is based on two concepts, namely color and motion.
Hyunwoo Lee, Ayoung Cho, Mincheol Whang
doaj   +1 more source

Continuous-Spectrum Infrared Illuminator for Camera-PPG in Darkness

Sensors, 2020
Many camera-based remote photoplethysmography (PPG) applications require sensing in near infrared (NIR). The performance of PPG systems benefits from multi-wavelength processing. The illumination source in such system is explored in this paper.
Wenjin Wang, Luc Vosters, Albertus C. den Brinker   +2 more
doaj   +1 more source

Improvements in Remote Cardiopulmonary Measurement Using a Five Band Digital Camera [PDF]

, 2014
Remote measurement of the blood volume pulse via photoplethysmography (PPG) using digital cameras and ambient light has great potential for healthcare and affective computing. However, traditional RGB cameras have limited frequency resolution. We present
Gontarek, Sarah, McDuff, Daniel Jonathan, Picard, Rosalind W.   +2 more
core   +1 more source