Enhancement of time-frequency properties of ECG for detecting micropotentials by wavelet transform based method
Articles > Article · 2006
Authors: Hueseyin TIRTOM, Mehmet ENGİN, Erkan Zeki ENGİN
Expert Systems with Applications, Journal Indexed in SCI Expanded, International, WoS, 2006, vol 34, pp 746-753
DOI: 10.1016/j.eswa.2006.10.009
Summary
Time-frequency distributions have been widely utilized in the analysis of transients' nature of biomedical signals. In these applications, the time-frequency components with very small amplitude values cannot be displayed clearly. This drawback results from a masking effect on these components by the presence of high-energy slow waves and sharp patterns in the signal that produces large values in the time-frequency distributions. In this paper, we proposed an effective signal preprocessing method-using kurtosis-based denoising of wavelet coefficients.