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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Journal ArticleDOI
Development of a nonintrusive blood pressure estimation system for computer users.
TL;DR: This study was designed to estimate systolic BP by measuring pulse arrival time nonintrusively, and showed that this method could be useful for monitoring BP for telemedicine and e-health.
Proceedings ArticleDOI
On the Performance of Wavelets in Reducing Motion Artifacts from Photoplethysmographic Signals
TL;DR: Interestingly, the wavelet based method proved to be efficient in reducing MA restoring the respiratory information in tact with the PPG, and the Daubechies wavelet performed well for obtaining clean motion artifact-free PPG signal.
Journal ArticleDOI
A Robust Fusion Method for Motion Artifacts Reduction in Photoplethysmography Signal
TL;DR: The motion artifact-free PPG signal obtained using the proposed method can estimate HR, RR, and SpO2 with an accuracy of above 95%.
Proceedings ArticleDOI
Motion artifact detection and reduction in PPG signals based on statistics analysis
Shao Hanyu,Chen Xiao-hui +1 more
TL;DR: Quality of the signals can be distinguished by applying the proposed algorithm and high-quality signal segments can be correctly extracted despite the large MA, and accuracy of blood oxygen estimation can be improved.
Proceedings ArticleDOI
MICROST: A mixed approach for heart rate monitoring during intensive physical exercise using wrist-type PPG Signals
TL;DR: An accurate and efficient strategy, named MICROST, which estimates heart rate based on a mixed approach, designed as a MIxed algorithm which consists of acceleration Classification (AC), fiRst-frame prOcessing and heuriStic Tracking.
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.