Cuffless Single-Site Photoplethysmography for Blood Pressure Monitoring [PDF]
, 2020 One in three adults worldwide has hypertension, which is associated with significant morbidity and mortality. Consequently, there is a global demand for continuous and non-invasive blood pressure (BP) measurements that are convenient, easy to use, and ...
Abbott, D. +15 more
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On the Vector Space in Photoplethysmography Imaging [PDF]
2019 IEEE/CVF International Conference on Computer Vision Workshop (ICCVW), 2019 We study the vector space of visible wavelength intensities from face videos widely used as input features in Photoplethysmography Imaging (PPGI). Based upon theoretical principles of group invariance in the Euclidean space, we derive a change of the topology where the corresponding distance between successive measurements is defined as geodesic on a ...
Pilz, Christian S. +2 more
openaire +3 more sources
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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Intraoperative Imaging of Cortical Blood Flow by Camera-Based Photoplethysmography at Green Light
Applied Sciences, 2020 Intraoperative evaluation of blood perfusion in the brain cortex is an important but hitherto unresolved problem. Our aim was to demonstrate the feasibility of cerebral microcirculation assessment during open brain surgery by using camera-based ...
Oleg V. Mamontov +3 more
doaj +1 more source
Imaging PPG for In Vivo Human Tissue Perfusion Assessment during Surgery
Journal of Imaging, 2022 Surgical excision is the golden standard for treatment of intestinal tumors. In this surgical procedure, inadequate perfusion of the anastomosis can lead to postoperative complications, such as anastomotic leakages.
Marco Lai +6 more
doaj +1 more source
Non-Contact, Simple Neonatal Monitoring by Photoplethysmography
Sensors, 2018 This paper presents non-contact vital sign monitoring in neonates, based on image processing, where a standard color camera captures the plethysmographic signal and the heart and breathing rates are processed and estimated online.
Juan-Carlos Cobos-Torres +2 more
doaj +1 more source
Fatigue Driving Detection Method Based on IPPG Technology
Promet (Zagreb), 2023 Physiological signal index can accurately reflect the degree of fatigue, but the contact detection method will greatly affect the driver's driving. This paper presents a non-contact method for detecting tired driving. It uses cameras and other devices to
Jiuju Bi +3 more
doaj +1 more source
A Review of Atrial Fibrillation Detection Methods as a Service [PDF]
, 2020 Atrial Fibrillation (AF) is a common heart arrhythmia that often goes undetected, and even if it is detected, managing the condition may be challenging. In this paper, we review how the RR interval and Electrocardiogram (ECG) signals, incorporated into a
Acharya, U. Rajendra +2 more
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Remote Photoplethysmography for Evaluation of Cutaneous Sensory Nerve Fiber Function
Sensors, 2021 About 2% of the world’s population suffers from small nerve fiber dysfunction, neuropathy, which can result in severe pain. This condition is caused by damage to the small nerve fibers and its assessment is challenging, due to the lack of simple and ...
Zbignevs Marcinkevics +3 more
doaj +1 more source
A Multilayer Monte Carlo Model for the Investigation of Optical Path and Penetration Depth at Different Perfusion States of the Colon [PDF]
, 2019 There is a great interest in monitoring the oxygen supply delivered to the colon. Insufficient oxygen delivery may lead to hypoxia, sepsis, multiorgan dysfunction and death.
Chatterjee, S. +3 more
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