Fig. 3From: Epileptic seizure classifications using empirical mode decomposition and its derivativea Surface pre-seizure EEG signal and its first three IMF obtained using EMD; b surface seizure EEG signal and its first three IMF obtained using EMD; c surface pre-seizure EEG signal and its first three IMF obtained using EEMD; d surface seizure EEG signal and its first three IMF obtained using EEMDBack to article page