Performance analysis of ECG signal compression using SPIHT

Sani Muhamad Isa, M. Eka Suryana, M. Ali Akbar, Ary Noviyanto, Wisnu Jatmiko, Aniati Murni Arymurthy

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

In this paper, we analyze the performance of electrocardiogram (ECG) signal compression by comparing original and reconstructed signal on two problems. First, automatic sleep stage classification based on ECG signal; second, arrhythmia classification. An effective ECG signal compression method based on two-dimensional wavelet transform which employs set partitioning in hierarchical trees (SPIHT) and beat reordering technique used to compress the ECG signal. This method utilizes the redundancy between adjacent samples and adjacent beats. Beat reordering rearranges beat order in 2D (2 dimension) ECG array based on the similarity between adjacent beats. The experimental results show that the proposed method yields relatively low distortion at high compression rate. The experimental results also show that the accuracy of sleep stage classification and arrhythmia classification using reconstructed ECG signal from proposed method is comparable to the original signal. The proposed method preserved signal characteristics for the automatic sleep stage and arrhythmia classification problems.

Original languageEnglish
Pages (from-to)2011-2039
Number of pages29
JournalInternational Journal on Smart Sensing and Intelligent Systems
Volume6
Issue number5
Publication statusPublished - 1 Jan 2013

Keywords

  • ECG compression
  • Multirate signal processing
  • Set partitioning in hierarchical trees (SPIHT)
  • Wavelet transform

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