The dynamic range o fan ECG in the time-frequency domain used for the lossless signal compression

• Autorzy: Augustyniak P.
• Języki publikacji: EN

Abstrakty

EN

Time-frequency domain compression of an ECG is the new still underestimated issue. This paper is devoted to the statistical analysis of the ECG dynamic ranges on various aspects of time-frequency plane. The traditional approach to the signal values distribution, originally introduced by Huffman, is now studied for integer time-frequency coefficients obtained with use of reversible integer-to-integer wavelet transform. Obtained results determine limits of perfectly lossless compression ratios for an electrocardiogram. They are interesting for comparative purposes and further development of nearly lossless algorithms. The research had initially only experimental aims, but practical hardware implementation is also feasible.

Słowa kluczowe

EN

electrocardiography; digital signal processing; time-frequency representation

PL

elektrokardiografia; przetwarzanie cyfrowe sygnałów; reprezentacja czasowo-częstotliwościowa

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2000
• Tom: Vol. 1
• Strony: BI 29--37
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Augustyniak P.

• AGH Technical University, Institute of Automatics, PL-30-059 Kraków, Mickiewicza 30, Poland