Title :
A novel, low-complexity method for intracardiac signal compression in implantable devices
Author :
Molina, A. ; Urbaszek, A. ; Huber, J. ; Schaldach, M.
Author_Institution :
Zentralinst. fur Biomed. Technik, Erlangen-Nurnberg Univ., Germany
fDate :
30 Oct-2 Nov 1997
Abstract :
With an increasing use of implantable devices for the therapy of heart arrhythmia, the need arises for an efficient recording of cardiac signals with the limited resources of an implant. In this paper the authors present a new signal compression algorithm based on the Walsh-Hadamard Transform (WHT), which is suitable for realtime operation with minimal computational needs. Simulations with clinically measured data delivered compression ratios in the range 2.5-4 with just 4% PRD maximum distortion. This figures compare well to the results obtained with other (more complex) ECG compression techniques presented in the literature
Keywords :
Walsh functions; data compression; defibrillators; electrocardiography; medical signal processing; pacemakers; prosthetics; ECG compression techniques; Walsh-Hadamard Transform; cardiac signals; clinically measured data; efficient recording; implantable devices; intracardiac signal compression; minimal computational needs; novel low-complexity method; signal compression algorithm; Biomedical measurements; Chromium; Compression algorithms; Discrete cosine transforms; Discrete transforms; Distortion; Electrocardiography; Heart rate; Implants; Medical treatment;
Conference_Titel :
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-4262-3
DOI :
10.1109/IEMBS.1997.754473
