Electrocardiogram Data Compression by the Oslo Algorithm and DP Matching

Yoshiaki SAITOH  Yasushi HASEGAWA  Tohru KIRYU  Jun'ichi HORI  

IEICE TRANSACTIONS on Information and Systems   Vol.E76-D   No.12   pp.1411-1418
Publication Date: 1993/12/25
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on ECG Data Compression)
compression,  ECG,  B spline,  DP matching,  

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We use the B spline function and apply the Oslo algorithm to minimize the number of control points in electrocardiogram (ECG) waveform compression under the limitation of evaluation indexes. This method is based on dynamic programming matching to transfer the control points of a reference ECG waveform to the succeeding ECG waveforms. This reduces the execution time for beat-to-beat processing. We also reduced the processing time at several compression stages. When the difference percent normalized root mean square difference is around 10, our method gives the highest compression ratio at a sampling frequency of 250 Hz.