Title :
Multiscale Entropy-Based Weighted Distortion Measure for ECG Coding
Author :
Manikandan, M. Sabarimalai ; Dandapat, S.
Author_Institution :
Dept. of Electron. & Commun. Eng., Indian Inst. of Technol. Guwahati, Guwahati
fDate :
6/30/1905 12:00:00 AM
Abstract :
In this letter, a novel objective distortion measure is proposed for compressed electrocardiogram (ECG) signals. The measure is a weighted percentage root-mean-square difference (WPRD) between the subband coefficients of the original and compressed signals with weights equal to the multiscale entropies of the corresponding subbands. The measure appears to be a correct representation of the amount of signal distortion at all the subbands. Experiments show that the measure works better than the other existing measures and correlates well with the subjective assessments.
Keywords :
data compression; distortion; electrocardiography; entropy codes; least mean squares methods; medical signal processing; signal representation; ECG coding; compressed electrocardiogram signal; multiscale entropy-based weighted distortion measure; signal representation; subband coefficient; weighted percentage root-mean-square difference method; Chromium; Distortion measurement; Electrocardiography; Energy measurement; Entropy; Frequency estimation; Noise measurement; Quality control; Testing; Weight measurement; Electrocardiogram; PRD; WWPRD; multiscale entropy; wavelet energy; wavelet energy-based diagnostic distortion (WEDD); weighted distortion measure;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2008.2007620