Proceedings ArticleDOI
Adaptive filtering of ECG baseline wander
Pablo Laguna,Raimon Jane,Pere Caminal +2 more
- Vol. 2, pp 508-509
TLDR
This work presents a cascade adaptive filter to remove the baseline wander in the ECG preserving the overlapped deterministic low frequency components of theECG, such as ST segment components.Abstract:
Baseline wander removal is a classical problem in ECG signal processing. We present a cascade adaptive filter to remove the baseline wander in the ECG preserving the overlapped deterministic low frequency components of the ECG, such as ST segment components. This cascade adaptive filter works in two stages. The first stage is an adaptive notch filter at zero frequency. The second stage is an adaptive impulse correlated filter that estimates the ECG signal correlated with the QRS occurrence. In both stages the LMS algorithm is used with different gain constants μ 1 and μ 2 . We analyse the frequency response of the filter as a function of the μ 1 and μ 2 parameters, selecting those more appropriated for baseline removal. Finally, the performance of the filter is studied on an actual ECG affected by baseline drift.read more
Citations
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Journal ArticleDOI
A robust fetal ECG detection method for abdominal recordings
TL;DR: The results show that the sequential estimation method outperforms ICA with a FHR detection rate of 85% versus 60% of ICA, which indicates that the method is more robust than ICA for FECG detection.
Journal ArticleDOI
ECG baseline wander and powerline interference reduction using nonlinear filter bank
Jacek M. Łȩski,Norbert Henzel +1 more
TL;DR: Methods of noise reduction have decisive influence on performance of all electrocardiographic (ECG) signal processing systems and this work presents a new class of nonlinear filters without signal distortion.
Proceedings ArticleDOI
A New Method for Removal of Baseline Wander and Power Line Interference in ECG Signals
Zhi-Dong Zhao,Yu-quan Chen +1 more
TL;DR: Results indicate that the baseline wander and power line interference of ECG are removed effectively by this new method based on empirical mode decomposition and notch filter.
Journal ArticleDOI
Photoplethysmography-Based Method for Automatic Detection of Premature Ventricular Contractions
TL;DR: This work introduces a method for detection of premature ventricular contractions in photoplethysmogram (PPG), which relies on 6 features, characterising PPG pulse power, and peak-to-peak intervals, and a sliding window approach is applied to extract the features.
Journal ArticleDOI
A Wavelet Packets Approach to Electrocardiograph Baseline Drift Cancellation
TL;DR: A wavelet-transform- (WT-) based search algorithm using the energy of the signal in different scales to isolate baseline wander from the ECG signal is presented.
References
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Journal ArticleDOI
Applications of adaptive filtering to ECG analysis: noise cancellation and arrhythmia detection
Nitish V. Thakor,Y.-S. Zhu +1 more
TL;DR: Several adaptive filter structures are proposed for noise cancellation and arrhythmia detection and an adaptive recurrent filter structure is proposed for acquiring the impulse response of the normal QRS complex.
Journal ArticleDOI
Removal of Base-Line Wander and Power-Line Interference from the ECG by an Efficient FIR Filter with a Reduced Number of Taps
J. A. van Alsté,T. S. Schilder +1 more
TL;DR: Linear phase filtering is proposed for the removal of baseline wander and power-line frequency components in electrocardiograms with a considerably reduced number of impulse response coefficients.
Journal ArticleDOI
Electrocardiogram baseline noise estimation and removal using cubic splines and state-space computation techniques☆
C.R. Meyer,H.N. Keiser +1 more
TL;DR: This work has shown that by estimating and removing noise from the baseline of electrocardiograms, using cubic splines generated exclusively from PR-segment samples, low-frequency noise superimposed on the baseline may be removed without affecting ST-segments.
Adaptive filter for event-related bioelectric signals using an impulse correlated reference input : comparison with signal averaging techniques
TL;DR: An adaptive impulse correlated filter for event-related signals that are time-locked to a stimulus is presented and it is shown that the AICF is equivalent to exponentially weighted averaging (FWA) when using the LMS algorithm.
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Electrocardiogram baseline noise estimation and removal using cubic splines and state-space computation techniques☆
C.R. Meyer,H.N. Keiser +1 more
Removal of Base-Line Wander and Power-Line Interference from the ECG by an Efficient FIR Filter with a Reduced Number of Taps
J. A. van Alsté,T. S. Schilder +1 more