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 -