2008
DOI: 10.1109/tbme.2008.918465
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An ECG Signals Compression Method and Its Validation Using NNs

Abstract: This paper presents a new algorithm for electrocardiogram (ECG) signal compression based on local extreme extraction, adaptive hysteretic filtering and Lempel-Ziv-Welch (LZW) coding. The algorithm has been verified using eight of the most frequent normal and pathological types of cardiac beats and an multi-layer perceptron (MLP) neural network trained with original cardiac patterns and tested with reconstructed ones. Aspects regarding the possibility of using the principal component analysis (PCA) to cardiac p… Show more

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Cited by 120 publications
(63 citation statements)
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“…In other words, ECG segments will be used (cardiac cycles) and the ECG signal will be reconstructed by concatenating these cardiac segments (cycles). According to the algorithm described in [9] the segmentation of the ECG signal into cardiac cycles is achieved based on the R waves detection. Thus, one cardiac cycle is represented by the ECG signal between the middle of a RR segment and the middle of the next RR segment, where the RR segment means the ECG waveform between two successive R waves.…”
Section: Methodology and Objectivementioning
confidence: 99%
See 1 more Smart Citation
“…In other words, ECG segments will be used (cardiac cycles) and the ECG signal will be reconstructed by concatenating these cardiac segments (cycles). According to the algorithm described in [9] the segmentation of the ECG signal into cardiac cycles is achieved based on the R waves detection. Thus, one cardiac cycle is represented by the ECG signal between the middle of a RR segment and the middle of the next RR segment, where the RR segment means the ECG waveform between two successive R waves.…”
Section: Methodology and Objectivementioning
confidence: 99%
“…After the segmentation of the ECG signal there is a centering of the R wave which is made by resampling on 150 samples on both sides of the R wave. In this way all cardiac cycles will have size 301 and the R wave will be positioned on the sample 151 [9]. Figure 1.…”
Section: Methodology and Objectivementioning
confidence: 99%
“…Thus original samples of ECG are subjected to a transformation and the compression is performed in the entirely new domain like Fourier transform (FT), DCT and wavelet etc [8,12,16,28,31]. These techniques pose higher CR than direct techniques and are insensitive to noise present in ECG signals.…”
Section: Transform-domain Techniquesmentioning
confidence: 99%
“…We defined a quality factor QF similar with the measure proposed in [9] as the ratio of the square of the compression ratio and the distortion factor and we computed it for different groups of three features: 2 / CR PRD QF =…”
Section: Proposed Algorithmmentioning
confidence: 99%