Journal ArticleDOI
Motion artifact reduction in photoplethysmography using independent component analysis
B.S. Kim,Sun Kook Yoo +1 more
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TLDR
The motion artifacts were reduced by exploiting the quasi-periodicity of the PPG signal and the independence between the P PG and the motion artifact signals by the combination of independent component analysis and block interleaving with low-pass filtering.Abstract:
Removing the motion artifacts from measured photoplethysmography (PPG) signals is one of the important issues to be tackled for the accurate measurement of arterial oxygen saturation during movement. In this paper, the motion artifacts were reduced by exploiting the quasi-periodicity of the PPG signal and the independence between the PPG and the motion artifact signals. The combination of independent component analysis and block interleaving with low-pass filtering can reduce the motion artifacts under the condition of general dual-wavelength measurement. Experiments with synthetic and real data were performed to demonstrate the efficacy of the proposed algorithm.read more
Citations
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Proceedings ArticleDOI
Estimating Heart Rate during Steady-State Activities and Transitions Based on Signal of PPG and ACC
Qiang Zhang,Chuanbin Ge,Yi Xin +2 more
TL;DR: This paper presents a method based on synchronized PPG and ACC to estimate HR during steady-state activities and related transitions, and locate the steady state and transitional state by ACC signal.
Rate Tracking during Athletes Maximal Exercise Test
Sonnia María López-Silva,Romano Giannetti,María Luisa Dotor,J.P. Silveira,Dolores Golmayo,Francisco Miguel-Tobal,Amaya Bilbao,Mercedes Galindo,Pilar Martín-Escudero +8 more
Book ChapterDOI
PPG-Based Non-invasive Methodologies for Pervasive Monitoring of Vitals: BP and HR
TL;DR: In this paper, the accurate and low-complex methodologies for real-time monitoring of HR and BP for cardiac and stroke rehabilitation monitoring are presented. But, developing algorithms for realtime monitoring is a significant challenge due to various conflicting requirements including high accuracy, less complexity, and limited power supply.
Journal ArticleDOI
A Reliable and Smart E-Healthcare System for Monitoring Intravenous Fluid Level, Pulse, and Respiration Rate
TL;DR: A continuous monitoring system is being developed to monitor the level of the intravenous fluid, pulse rate and respiration rate during pandemic situations with an alarm indication.
Proceedings ArticleDOI
A Flexible-Window Filtering Technique for Interference Suppression in SpO2 Monitoring
TL;DR: In this paper, a flexible-window filtering technique is proposed to suppress the interferences in SpO2 monitoring, which can be used in assessing or screening symptoms such as pulmonary embolism.
References
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Book
Independent Component Analysis
TL;DR: Independent component analysis as mentioned in this paper is a statistical generative model based on sparse coding, which is basically a proper probabilistic formulation of the ideas underpinning sparse coding and can be interpreted as providing a Bayesian prior.
Journal ArticleDOI
Fast and robust fixed-point algorithms for independent component analysis
TL;DR: Using maximum entropy approximations of differential entropy, a family of new contrast (objective) functions for ICA enable both the estimation of the whole decomposition by minimizing mutual information, and estimation of individual independent components as projection pursuit directions.
Journal ArticleDOI
A dynamical model for generating synthetic electrocardiogram signals
TL;DR: A dynamical model based on three coupled ordinary differential equations is introduced which is capable of generating realistic synthetic electrocardiogram (ECG) signals and may be employed to assess biomedical signal processing techniques which are used to compute clinical statistics from the ECG.
BookDOI
Design of Pulse Oximeters
TL;DR: In this paper, the authors present a user interface for a pulse oximeter, based on an interface provided by Lozano-Nieto and Schowalter, with a discussion of the application of pulse oximetry.
Journal ArticleDOI
A new method for pulse oximetry possessing inherent insensitivity to artifact
M.J. Hayes,P.R. Smith +1 more
TL;DR: It is demonstrated that this new methodology results in a reduced sensitivity to common classes of motion artifact, while retaining the generality to be combined with conventional signal processing techniques.