Individual Evoked Potential Extraction by Multiresolution Wavelets Decomposition

The present study aims at developing a method to extract single sweep evoked potentials. It is based on the wavelets decomposition of the individual signals. Contrary to previous methods, no a priori assumptions on the signal are necessary. A thresholding based on the coefficient of variation is applied to the wavelets coefficients in order to extract the evoked potential from the background noise. This method is compared to the classical method of low-pass filtering