Journal ArticleDOI
Motion artifact reduction in photoplethysmography using independent component analysis
B.S. Kim,Sun Kook Yoo +1 more
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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
Signal (stream) synchronization with white noise sources, in biomedical applications
TL;DR: A processing method to efficiently synchronize signals in the presence of white noise sources without the requirement of clock sharing or any other digital line exchange is introduced.
Proceedings ArticleDOI
Motion artifact reduction in photoplethysmogram signals based on Periodic Component Factorization
TL;DR: A novel algorithm called Periodic Component Factorization (PCF), which is an extension of Independent Component Analysis (ICA), for better removal of motion artifact (MA) from photoplethysmography (PPG) signals is proposed in this paper.
Design and development of electro-optical system for acquisition of ppg signals for the assessment of cardiovascular system
Kiran Kumar,Mallikarjun S. Holi +1 more
TL;DR: The developed wireless PPG system can be an alternative to the traditional methods used for remote monitor of cardiovascular and respiratory system and their disorders and is non-invasive, portable, reliable and cost effective.
Motion artifact reduction in PPG signals
Jaqub Ghairat,Hassan Mouhsen +1 more
TL;DR: A new proposed method that uses a two-stage based approach with singular value decomposition and fixed fast ICA algorithm in order to generate a PPG-correlated reference signal that is used in adaptive noise cancellation.
Proceedings ArticleDOI
Heart Rate Variability for Predicting Coronary Heart Disease using Photoplethysmography
N. Mangathayaru,B. Padmaja Rani,V Janaki,Lakshmi Sowmya Kotturi,Manasa Vallabhapurapu,Vikas G +5 more
TL;DR: A novel technique with a ruff preprocessing method (8 filters) and diverge at a conclusion that Chebyshev type-2 nullifies and filters the PPG signal collected in a conventional environment.
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.