Abstract
Compression of ECG signal is essential especially in the area of signal transmission in telemedicine. There exist many compression algorithms which are described in various details, tested on various datasets and their performance is expressed by different ways. There is a lack of standardization in this area. This study points out these drawbacks and presents new compression algorithm which is properly described, tested and objectively compared with other authors. This study serves as an example how the standardization should look like. Single-cycle fractal-based (SCyF) compression algorithm is introduced and tested on 4 different databases—CSE database, MIT-BIH arrhythmia database, High-frequency signal and Brno University of Technology ECG quality database (BUT QDB). SCyF algorithm is always compared with well-known algorithm based on wavelet transform and set partitioning in hierarchical trees in terms of efficiency (2 methods) and quality/distortion of the signal after compression (12 methods). Detail analysis of the results is provided. The results of SCyF compression algorithm reach up to avL = 0.4460 bps and PRDN = 2.8236%.
Highlights
ObjectivesThe first aim of this study is to point out drawbacks, gaps, and mistakes present in the area of compression to make compression results objective, reliable and to enable objective comparison between authors
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Signal no. 100001 is the most quality one, 105001 is a little bit less quality but on the other hand it contains only 0.03% of quality group (QG) 3
Summary
The first aim of this study is to point out drawbacks, gaps, and mistakes present in the area of compression to make compression results objective, reliable and to enable objective comparison between authors. The second aim of the study is to introduce new Single-Cycle Fractal-Based (SCyF) compression method and to compare it with WT + SPIHT based method
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