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
Rapid Vital Sign Extraction for Real-time Opto-physiological Monitoring at Varying Physical Activity Intensity Levels
TL;DR: In this article , a minimum residual (MR) method was proposed to suppress MAs and obtain reliable physiological readings using the part of the pulsatile signal captured by a multi-wavelength illumination optoelectronic patch sensor (mOEPS).
Journal ArticleDOI
Precision Heart Rate Estimation Using a PPG Sensor Patch Equipped with New Algorithms of Pre-Quality Checking and Hankel Decomposition
Smriti Thakur,Paul C.-P. Chao +1 more
TL;DR: In this paper , a method for accurately estimating heart rates based on a single photoplethysmography (PPG) signal and accelerations is proposed, considering motion artifacts due to subjects' hand motions and walking.
Book ChapterDOI
The Heart Rate Monitoring Based On Adaptive Cancellation Method
Wang Wei,Xiong Ying,Wang Xin +2 more
TL;DR: For solving the problem that PPG signals were usually corrupted by motion artifact, a comprehensive approach for heart rate monitoring of real-time wearable devices was proposed in this paper, based on the adaptive noise cancellation technique.
Proceedings ArticleDOI
Wavelet-based ECG-derived Respiration Denoising
TL;DR: In this article , a wavelet-based EDR denoising algorithm was proposed to mitigate the noise in the ECG signal, which can enhance the reliability and utility of IoMT devices with ECG.
Journal ArticleDOI
Rapid Vital Sign Extraction for Real-Time Opto-Physiological Monitoring at Varying Physical Activity Intensity Levels
TL;DR: In this article , a minimum residual (MR) method was proposed to suppress motion artefacts (MAs) generated by photoplethysmographic (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.