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Effect of Wavelet Packet Log Energy Entropy on Electroencephalogram (EEG) Signals

S. Raghu, N. Sriraam, G. Pradeep Kumar

Source Title: International Journal of Biomedical and Clinical Engineering (IJBCE)4(1)

ISSN: 2161-1610|EISSN: 2161-1629|EISBN13: 9781466680470|DOI: 10.4018/IJBCE.2015010103

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MLA

Raghu, S., et al. "Effect of Wavelet Packet Log Energy Entropy on Electroencephalogram (EEG) Signals." IJBCE vol.4, no.1 2015: pp.32-43. http://doi.org/10.4018/IJBCE.2015010103

APA

Raghu, S., Sriraam, N., & Kumar, G. P. (2015). Effect of Wavelet Packet Log Energy Entropy on Electroencephalogram (EEG) Signals. International Journal of Biomedical and Clinical Engineering (IJBCE), 4(1), 32-43. http://doi.org/10.4018/IJBCE.2015010103

Chicago

Raghu, S., N. Sriraam, and G. Pradeep Kumar. "Effect of Wavelet Packet Log Energy Entropy on Electroencephalogram (EEG) Signals," International Journal of Biomedical and Clinical Engineering (IJBCE) 4, no.1: 32-43. http://doi.org/10.4018/IJBCE.2015010103

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Abstract

The scaling behavior of human electroencephalogram (EEG) signals is well exploited by appropriate extraction of time – frequency domain and entropy based features. Such measurable inherently helps understanding the neurophysiological phenomenon of brain as well as its associated cortical activities. Being a non-linear time series, EEG's are assumed to be fragment of fluctuations. Several attempts have been made to study the EEG signals for clinical applications such as epileptic seizure detection, evoked response potential recognition, tumor detection, identification of alcoholics and so on. In all such applications appropriate selection of feature parameter plays an important role in discriminating normal EEG from abnormal. In the recent past one can find the importance of wavelet and wavelet packet towards EEG analysis. This proposed research work investigates the effect of wavelet packet log energy entropy on EEG signals. Entropy being the measure of relative information, the proposed study attempts to discriminate the normal EEGs from abnormal EEG's by employing the log energy entropy features. For better brevity, this study restricts to the analysis of epileptic seizure from normal EEGs. Different decomposition levels from 2 to 5 were considered for wavelet packets with application of Haar, rbio3.1, sym7, dmey wavelets. A one second windowing was introduced for the data segmentation and Shannon's log energy entropy was estimated. Then the statistical non-parametric Wilcoxon model was employed. The result shows that the application of wavelet packet log energy entropy found to be a potential indicator for discriminating epileptic seizure from normal.

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Effect of Wavelet Packet Log Energy Entropy on Electroencephalogram (EEG) Signals

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