Fundamentals of the Decision of Optimum Factors in he ECG Data Compression

Masa ISHIJIMA  

Publication
IEICE TRANSACTIONS on Information and Systems   Vol.E76-D   No.12   pp.1398-1403
Publication Date: 1993/12/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on ECG Data Compression)
Category: 
Keyword: 
Data compression,  reduction,  ECG database,  assessment of algorithm,  RMS,  

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Summary: 
This paper describes and analyzed several indices in assessing algorithms of data compression of electrocardiograms, such as the cross correlation (CC), the percent root mean square difference (PRD), and a new measure of standardized root mean square difference (SRD). Although these indices are helpful to objectively evaluate the algorithms, the visual examination of the reconstructed waveform is indispensable to decide the optimal compression ratio. This paper presents the clinical significance of selected waveforms which are prone to be distorted or neglected in the restored waveforms but are crucial for cardiologists to diagnose the patient. A database of electrocardiograms is also proposed for the comparative evaluation of compression algorithms.