Open AccessJournal Article
Kalman Filter Based Adaptive Reduction of Motion Artifact from Photoplethysmographic Signal
Saeed Seyedtabaii,L. Seyedtabaii +1 more
TLDR
Simulation results show acceptable performance regarding LMS and variable step LMS, thus establishing the efficacy of the proposed method, Kalman Filter.Abstract:
Artifact free photoplethysmographic (PPG) signals are necessary for non-invasive estimation of oxygen saturation (SpO2) in arterial blood. Movement of a patient corrupts the PPGs with motion artifacts, resulting in large errors in the computation of Sp02. This paper presents a study on using Kalman Filter in an innovative way by modeling both the Artillery Blood Pressure (ABP) and the unwanted signal, additive motion artifact, to reduce motion artifacts from corrupted PPG signals. Simulation results show acceptable performance regarding LMS and variable step LMS, thus establishing the efficacy of the proposed method. Keywords—Kalman filter, Motion artifact, PPG, Photoplethysmography.read more
Citations
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Journal ArticleDOI
Wearable Photoplethysmographic Sensors—Past and Present
TL;DR: A review of wearable pulse rate sensors with green LEDs can be found in this paper. But, the authors do not discuss the application of these sensors in the medical field. But, they briefly present the history of wearable PPG and recent developments in wearable pulse-rate sensors.
Journal ArticleDOI
Artifact Removal in Physiological Signals—Practices and Possibilities
TL;DR: The physiological signals most likely to be recorded in the home are reviewed, documenting the artifacts which occur most frequently and which have the largest degrading effect, and a detailed analysis of current artifact removal techniques are presented.
Journal ArticleDOI
A Novel Time-Varying Spectral Filtering Algorithm for Reconstruction of Motion Artifact Corrupted Heart Rate Signals During Intense Physical Activities Using a Wearable Photoplethysmogram Sensor
S. M. A. Salehizadeh,Duy K. Dao,Jeffrey B. Bolkhovsky,Chae Ho Cho,Yitzhak Mendelson,Ki H. Chon +5 more
TL;DR: The results show that the SpaMA method has a potential for PPG-based HR monitoring in wearable devices for fitness tracking and health monitoring during intense physical activities and dynamics of heart rate variability can be accurately captured.
Journal ArticleDOI
Improved elimination of motion artifacts from a photoplethysmographic signal using a Kalman smoother with simultaneous accelerometry
TL;DR: The use of the fixed-interval Kalman smoother can reduce motion artifacts in PPG, thus providing the most reliable information that can be deduced from the reconstructed PPG signals.
Journal ArticleDOI
Relationship Between Measurement Site and Motion Artifacts in Wearable Reflected Photoplethysmography
TL;DR: Green-light PPG showed a higher correlation with the ECG R-R interval as compared to those obtained with infrared, and the signal from the upper arm showed less artifact than did the peripheral one, suggesting that the green- light PPG may be useful for pulse rate monitoring.
References
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R. Harris,D. Chabries,F. Bishop +2 more
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Journal ArticleDOI
Motion artifact reduction in photoplethysmography using independent component analysis
B.S. Kim,Sun Kook Yoo +1 more
TL;DR: 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.
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Reduction of motion artifact in pulse oximetry by smoothed pseudo Wigner-Ville distribution
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Proceedings ArticleDOI
Adaptive reduction of motion artifact from photoplethysmographic recordings using a variable step-size LMS filter
K.W. Chan,Yuan-Ting Zhang +1 more
TL;DR: Experimental results show that the proposed variable step-size LMS filter can provide better performance than the L MS filter with fixed step- size.
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