On the guarantee of reconstruction quality in ECG wavelet codecs.
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.
Alesanco
Alvaro
A
Commun. Technol. Group, Aragoń Institute fro Eng. Res., Zaragoza Univ., Spain. alesanco@unizar.es
García
José
J
Serrano
Pedro
P
Ramos
Luciano
L
Istepanian
Robert H
RH
D000465:Algorithms; D001698:Biomedical Engineering / Q000379:methods; D002309:Cardiology / Q000295:instrumentation; D003627:Data Interpretation, Statistical; D004562:Electrocardiography / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D015233:Models, Statistical; D008962:Models, Theoretical; D015203:Reproducibility of Results; D012815:Signal Processing, Computer-Assisted; D017216:Telemedicine