Patent ID: 11944445
Assignee: UNIVERSITE D'AIX MARSEILLE
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method for automatically detecting elements of interest in electrophysiological signals comprising:
delivering electrophysiological signals;
producing a whitened time-frequency representation of the electrophysiological signals;
setting a threshold;
applying the threshold to the whitened time-frequency representation;
detecting, in the whitened time-frequency representation, local maxima that are higher than or equal to the threshold,
wherein the producing of the whitened time-frequency representation comprises:
(i) applying a continuous wavelet transform,
(ii) separately standardizing real parts and imaginary parts of wavelet coefficients of the continuous wavelet transform, wherein the standardizing comprises calculating a normalization factor for each frequency of the whitened time-frequency representation by providing a bar chart showing the real parts of the wavelet coefficients, and adjusting a noise model over a central portion of the bar chart, and
(iii) after the standardizing, calculating a square modulus of the standardized real parts and imaginary parts of the wavelet coefficients.