ECG data compression with time-warped polynomials

1 January 1993

journal article
research article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering

Vol. 40 (11) , 1095-1101
https://doi.org/10.1109/10.245626

Abstract

This paper presents a new adaptive compression method for ECG's. The method represents each R-R interval by an optimally time-warped polynomial. It achieves a high-quality approximation at less than 250 bits/s. The article shows that the corresponding rates for other transform based schemes (the DCT and the DLT) are always higher. Also, the new method is less sensitive to errors in QRS detection and it removes more (white) noise from the signal. The reconstruction errors are distributed more uniformly in the new scheme and the peak error is usually lower. The reconstruction method is also useful for adaptive filtering of noisy ECG signals.

Keywords

This publication has 20 references indexed in Scilit:

Linear and quadratic time-frequency signal representations
IEEE Signal Processing Magazine, 1992
Data compression of ECG's by high-degree polynomial approximation
IEEE Transactions on Biomedical Engineering, 1992
Tailored orthonormal sets for expansion of specific classes of functions
Published by Institute of Electrical and Electronics Engineers (IEEE) ,1992
ECG data compression techniques-a unified approach
IEEE Transactions on Biomedical Engineering, 1990
ECG Data Compression Using Fourier Descriptors
IEEE Transactions on Biomedical Engineering, 1986
From Holter Monitors to Automatic Defibrillators: Developments in Ambulatory Arrhythmia Monitoring
IEEE Transactions on Biomedical Engineering, 1984
Data Reduction of Body Surface Potential Maps by Means of Orthogonal Expansions
IEEE Transactions on Biomedical Engineering, 1984
A New Data-Reduction Algorithm for Real-Time ECG Analysis
IEEE Transactions on Biomedical Engineering, 1982
A Method for Evaluation of QRS Shape Features Using a Mathematical Model for the ECG
IEEE Transactions on Biomedical Engineering, 1981
On bandwidth
Proceedings of the IEEE, 1976