Optimized stockwell transform for the segmentation of ECG signals

In this study, an optimized Stockwell transform is applied on ECG signals. The optimization of time-frequency representation helps to separate better the different complex of ECG signal. The envelope of the signal is extracted by applying non linear transform on the optimized time-frequency matrix and a peak detector algorithm is applied to detect the different ECG complex. The proposed method is evaluated on synthetic and real ECG signals for healthy adult's volunteers. The robustness against noise of the proposed method is also tested and discussed.