TY - GEN
T1 - A comparative study of some wavelet functions in the denoising of phonocardiogram signals
AU - Kouras, Nayad
AU - Boutana, Daoud
AU - Benidir, M.
AU - Barkat, B.
PY - 2009
Y1 - 2009
N2 - Biomedical signal recordings are affected by different kinds of noise that make their interpretation difficult. In this paper, we present a comparative study of some wavelet functions in the denoising of phonocardiogram (PCG) signals. In particular, we consider the Daubechies of order 4, 6, 8, 10 and 15, Coiflets of order 3, 4, 5 and finally Symlets 10 (sym 10). The performance of these wavelets is based on the measurement of the signal-to-noise Ratio (SNR) of the denoised signal as well as the Mean Square Error (MSE) between the original noisy signal and its denoised counterpart. The results indicate that Daubechies of order 10 (db10) outperform other wavelet functions and, consequently, are potential candidates in the characterization of abnormal PCG signal.
AB - Biomedical signal recordings are affected by different kinds of noise that make their interpretation difficult. In this paper, we present a comparative study of some wavelet functions in the denoising of phonocardiogram (PCG) signals. In particular, we consider the Daubechies of order 4, 6, 8, 10 and 15, Coiflets of order 3, 4, 5 and finally Symlets 10 (sym 10). The performance of these wavelets is based on the measurement of the signal-to-noise Ratio (SNR) of the denoised signal as well as the Mean Square Error (MSE) between the original noisy signal and its denoised counterpart. The results indicate that Daubechies of order 10 (db10) outperform other wavelet functions and, consequently, are potential candidates in the characterization of abnormal PCG signal.
KW - Denoising
KW - Phonocardiogram signal
KW - Thresholding
KW - Wavelet analysis
UR - http://www.scopus.com/inward/record.url?scp=78649258472&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:78649258472
SN - 9780791802977
T3 - ICACTE 2009 - Proceedings of the 2nd International Conference on Advanced Computer Theory and Engineering
SP - 25
EP - 32
BT - ICACTE 2009 - Proceedings of the 2nd International Conference on Advanced Computer Theory and Engineering
T2 - 2nd International Conference on Advanced Computer Theory and Engineering, ICACTE 2009
Y2 - 25 September 2009 through 27 September 2009
ER -