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
An Algorithm for Real-Time Pulse Waveform Segmentation and Artifact Detection in Photoplethysmograms
TL;DR: The PWF analysis seems to be a suitable method for PPG signal quality determination, real-time annotation, data compression, and calculation of additional pulse wave metrics such as amplitude, duration, and rise time.
Journal ArticleDOI
Photoplethysmograph signal reconstruction based on a novel hybrid motion artifact detection-reduction approach. Part I: Motion and noise artifact detection
Jo Woon Chong,Duy K. Dao,S. M. A. Salehizadeh,David D. McManus,Chad E. Darling,Ki H. Chon,Yitzhak Mendelson +6 more
TL;DR: The accuracy and error values of the proposed MNA detection method were significantly higher and lower, respectively, than all other detection methods, and it is able to provide highly accurate onset and offset detection times of MNAs.
Journal ArticleDOI
Heuristic Algorithm for Photoplethysmographic Heart Rate Tracking During Maximal Exercise Test
Sonnia María López-Silva,Romano Giannetti,María Luisa Dotor Castilla,J.P. Silveira,Dolores Golmayo Fernández,Francisco Miguel-Tobal,Amaya Bilbao Monasterio,Mercedes Galindo Canales,Pilar Martín Escudero +8 more
TL;DR: This study develops and validates an algorithm, which is based on linear filtering and frequency-domain and heuristic analyses, for extracting the heart rate from a PPG signal in the presence of severe motion artifacts.
Optical Pulse Wave Signal Analysis for Determination of Early Arterial Ageing in Diabetic Patients
TL;DR: In this article, the authors present a review of the first three editions of the CURICULUM VITAE corpus: 1) Publication I............................................................................................... 2) Publication II.................................................................................................. 3) Publication III................................................................................................. 4) Publication IV......................................................................................... 5) Publication V.................................................................................. 6]
Proceedings ArticleDOI
A new method for heart rate monitoring during physical exercise using photoplethysmographic signals
TL;DR: This work presents an approach that is based on photoplethysmographic (PPG) signals which are measured with two wrist-type pulse oximeters that suppresses the motion artifacts by adaptively estimating the transfer functions of each of the three-axis acceleration signals that produce the artifacts in the PPG signals.
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.