A wearable oximeter is needed to help people safely perform missions in environmental
extremes. Key initial needs are monitoring for hypoxemia at high altitudes and monitoring for …

Accurate heart rate estimation from reflectance photoplethysmography (PPG) during intense
physical activity is difficult given unpredictable motion artifacts (MAs). Recent research has …

Photoplethysmography (PPG) is a noninvasive technology that uses a light source and a
photodetector at the surface of the skin to monitor the volumetric variations of blood …

Ever since the medical device pulse oximeter was invented, reliable and accurate estimation
of arterial blood oxygen saturation (SpO 2), based on the differential absorption of …

Photoplethysmography (PPG) sensors have become widespread in most of the healthcare
categories; its drawbac is unreliable during non-stationary states. Adaptive noise …

Artifact-free clean photoplethysmographic (PPG) signals obtained at red and infrared (IR)
wavelengths are required for the estimation of the level of oxygen saturation (SpO 2) in …

Long-term heart rate (HR) monitoring by wrist-worn photoplethysmograph (PPG) sensors
enables the assessment of health conditions during daily life with high user comfort …

Photoplethysmogram (PPG) has been used with great effect for predicting human vitals such
as heart rate variability or blood oxygen saturation (SpO 2), etc. The quality of PPG signal is …

Photoplethysmography (PPG) as a non-invasive and low-cost technique plays a significant
role in wearable Internet-of-Things based health monitoring systems, enabling continuous …

Objective: The purpose of this paper is to demonstrate that a new algorithm for estimating
arterial oxygen saturation can be effective even with data corrupted by motion artifacts …