Title :
On the Guarantee of Reconstruction Quality in ECG Wavelet Codecs
Author :
Alesanco, Alvaro ; Garcia, J. ; Serrano, Pedro ; Ramos, Luciano ; Istepanian, Robert S H
Author_Institution :
Commun. Technol. Group, Zaragoza Univ.
fDate :
Aug. 30 2006-Sept. 3 2006
Abstract :
Guaranteeing reconstruction quality in ECG lossy compression is essential to obtain signals useful from a clinical point of view. In this paper we discuss the advantages and drawbacks of using two very well known mathematical error measures (PRD and RMS) in order to guarantee quality in threshold wavelet compression codecs that work segmenting the signal into blocks. We use two different error indices to analyze the results: mathematical (RMS global error) and clinical (MOS error). Although mathematical results conclude that guaranteeing RMS is better than PRD, clinical results have shown that the election is subordinated to the signal specific morphology
Keywords :
data compression; electrocardiography; encoding; error analysis; medical signal processing; signal reconstruction; wavelet transforms; ECG lossy compression; ECG wavelet codecs; RMS global error; clinical MOS error; error indices; mathematical error measures; signal reconstruction quality; threshold wavelet compression codecs; Cardiology; Cities and towns; Codecs; Electrocardiography; Error analysis; Hospitals; Nominations and elections; USA Councils; Wavelet coefficients; Wavelet transforms;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.259420
