Photoplethysmography (PPG) is a non-invasive photometric technique that measures the
volume changes in arterial blood. Recent studies have reported limitations in developing …

In the last decades, photoplethysmography (PPG) has been used as a noninvasive
technique for monitoring arterial oxygen saturation by pulse oximetry (PO), whereas near …

For the last two decades, pulse oximetry has been used as a standard procedure for
monitoring arterial oxygen saturation (SpO 2). However, SpO 2 measurements made from …

We describe an evaluation of photoplethysmography (PPG) signals with two wavelengths
channels (infrared and red) using a wrist-worn sensor for the estimation of heart rate …

This article presents a novel PPG acquisition platform capable of synchronous multi-
wavelength signal acquisition from two measurement locations with up to 4 independent …

Pulse oximeters relay on the technique of photoplethysmography (PPG) to estimate arterial
oxygen saturation (SpO 2). In conditions of poor peripheral perfusion such as hypotension …

The measurement of blood oxygen saturation (SpO 2) plays an increasingly key role in
medical monitoring and health detection. In order to improve SpO 2 precision, this paper …

We present a telemedicine system for home use, which focuses on the continuous
monitoring of vital signs, in order to present a broader picture of the state of the baby …

Current oxygen delivery modes lack monitoring and can be cumbersome for patients with
chronic respiratory diseases. Integrating a pulse oximeter and nasal oxygen cannulas into …

Photoplethysmography (PPG) is a noninvasive optical technique that measures blood
volume changes [1]. In PPG, light is shone in tissue and the backscattered light is measured …