Results 31 to 40 of about 6,321 (175)
A review of machine learning techniques in photoplethysmography for the non-invasive cuff-less measurement of blood pressure [PDF]
, 2020 Hypertension or high blood pressure is a leading cause of death throughout the world and a critical factor for increasing the risk of serious diseases, including cardiovascular diseases such as stroke and heart failure.
El-Hajj, C., Kyriacou, P. A.
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A Novel Algorithm for Remote Photoplethysmography: Spatial Subspace Rotation [PDF]
IEEE Transactions on Biomedical Engineering, 2016 In this paper, we propose a conceptually novel algorithm, namely "Spatial Subspace Rotation" (2SR), that improves the robustness of remote photoplethysmography. Based on the assumption of 1) spatially redundant pixel-sensors of a camera, and 2) a well-defined skin mask, our core idea is to estimate a spatial subspace of skin-pixels and measure its ...
Wang, W., Stuijk, S., de Haan, G.
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Performance Evaluation of rPPG Approaches with and without the Region-of-Interest Localization Step
Applied Sciences, 2021 Traditionally, the first step in physiological measurements based on remote photoplethysmography (rPPG) is localizing the region of interest (ROI) that contains a desired pulsatile information. Recently, approaches that do not require this step have been
Žan Pirnar +2 more
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Attacks on Heartbeat-Based Security Using Remote Photoplethysmography [PDF]
IEEE Journal of Biomedical and Health Informatics, 2018 The time interval between consecutive heartbeats (interpulse interval, IPI) has previously been suggested for securing mobile-health solutions. This time interval is known to contain a degree of randomness, permitting the generation of a time- and person-specific identifier. It is commonly assumed that only devices trusted by a person can make physical
Robert Mark Seepers +4 more
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Monte Carlo Analysis of Optical Interactions in Reflectance and Transmittance Finger Photoplethysmography [PDF]
, 2019 Photoplethysmography (PPG) is a non-invasive photometric technique that measures the volume changes in arterial blood. Recent studies have reported limitations in developing and optimising PPG-based sensing technologies due to unavailability of the ...
Anatomy +13 more
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Color-Distortion Filtering for Remote Photoplethysmography
2017 12th IEEE International Conference on Automatic Face & Gesture Recognition (FG 2017), 2017 This paper introduces a powerful filtering method that exploits the physiological and optical properties of skin reflections to improve the performance of remote photoplethysmography (rPPG). Based on the fact that the pulsatile and non-pulsatile (e.g., intensity and specular changes) components have different reflection-spectra in a multi-wavelength ...
Wang, W. +3 more
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Photoplethysmography based remote health monitoring system [PDF]
2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA), 2013 One of the world's most leading killer diseases is the cardiovascular disease, which accounts for 16.7 million deaths annually. Out of the total population in the world, about 22 million people run the risk of sudden heart failure. However, saving the lives of cardiac patients can be improved by the emergency monitoring so that the initiation of ...
Malek A. Harbawi +2 more
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Sources of Inaccuracy in Photoplethysmography for Continuous Cardiovascular Monitoring
Biosensors, 2021 Photoplethysmography (PPG) is a low-cost, noninvasive optical technique that uses change in light transmission with changes in blood volume within tissue to provide information for cardiovascular health and fitness.
Jesse Fine +7 more
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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 +2 more
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Deep Learning Methods for Remote Heart Rate Measurement: A Review and Future Research Agenda
Sensors, 2021 Heart rate (HR) is one of the essential vital signs used to indicate the physiological health of the human body. While traditional HR monitors usually require contact with skin, remote photoplethysmography (rPPG) enables contactless HR monitoring by ...
Chun-Hong Cheng +4 more
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