Title :
Coding of ECG signals by wavelet transform extrema
Author :
Cetin, A. Enis ; Tewfik, Ahmed H. ; Yardimci, Yasemin
Author_Institution :
Koc Univ., Istanbul, Turkey
Abstract :
A new electrocardiogram (ECG) coding method is presented. The method is based on storing the extrema of the wavelet transform of the ECG signal. The finite wavelet packet decomposition of the sampled ECG signal is obtained using the perfect reconstruction filterbank of the transform. The extrema of the resulting high-frequency subsignals are detected and the ones representing the clinically significant peak information are stored. The low-resolution subsignal is compressed by a PCM coder
Keywords :
data compression; electrocardiography; medical signal processing; pulse code modulation; signal reconstruction; signal representation; signal sampling; transform coding; wavelet transforms; ECG signal; PCM coder; clinically significant peak information; electrocardiogram coding method; finite wavelet packet decomposition; high-frequency subsignals; low-resolution subsignal; perfect reconstruction filterbank; sampled ECG signal; wavelet transform extrema; Digital recording; Electrocardiography; Filter bank; Finite impulse response filter; Image coding; Image reconstruction; Image storage; Low pass filters; Space technology; Wavelet transforms;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1994., Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-2127-8
DOI :
10.1109/TFSA.1994.467294
