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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Book ChapterDOI
Multi-level Motion Artifacts Reduction in Photoplethysmography Signal Using Singular Value Decomposition
TL;DR: A method that uses a multi-level singular value decomposition (SVD) technique for effective reduction of motion artifacts while preserving the PPG morphology along with baseline is reported, which has potential for accurate estimation of heart rate and SpO2 from PPG signal.
Book ChapterDOI
Progressive Motion Artifact Removal in PPG Signal for Accurate Heart Rate Estimation
TL;DR: After removing MA and applying two peak tracking methods in 12 data sets, the mean absolute error (MAE) of the beat per minute (BPM) is lower than conventional methods.
Journal ArticleDOI
Efficient block-wise independent component analysis with optimal learning rate
TL;DR: In this study, correlation coefficients (CC) of the short-term Fourier transform among those acquired from the neighboring blocks are adopted for order permutation and phase correction of the separated signals.
Journal ArticleDOI
The Wearable Physical Fitness Training Device Based on Fuzzy Theory
TL;DR: In this paper, the authors proposed a set of monitoring parameters for a wearable device connected to the mobile edge computing and communication (MECC) based on fitness management to assist fitness trainers in effective prompted strength training, and to offer timely warnings in the event of an injury risk.
Book ChapterDOI
Pulse Oximetry for the Measurement of Oxygen Saturation in Arterial Blood
TL;DR: In this article, the authors describe in detail a couple of novel methods of oxygen saturation calculation using the red and IR photoplethysmography (PPG) obtained using red and infrared wavelength light sources and an empirical equation.
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.