Total Variation Based Multi Feature Model for Epilepsy Detection Using Support Vector Machine

ABSTRACT

Epilepsy is a critical brain disease which occurs primarily based on changes or connectivity issues between two neurons. Electroencephalography (EEG) is an efficient modality for capturing brain signals with respect to stimuli. Total variation (TV) is an energy based feature which helps to discriminate epilepsy from normal pattern. This paper proposes an efficient epileptic detection system based on TV model. Existing methods use single feature for classification, whereas, combination of multiple relevant features helps for better understanding of epilepsy. This paper also discusses combined multi feature model with TV for efficient detection and classification of EEG signal subbands (gamma, beta, alpha, theta, and delta) using support vector machine. Results show 100% delta band based classification accuracy for combination of features such as TV and sample entropy. This research also shows that combination of multi features such as, Shannon, spectral, TV, and linear predictor coefficient gives good classification accuracy for most of the subbands.

KEYWORDS:

• Brain signals
• Classification
• EEG
• Energy
• Epilepsy
• Multi feature
• Seizure detection
• SVM
• Total variation
• Brain mapping

ACKNOWLEDGMENT

Authors are thankful to the UGC BSR for providing partial funding support to carry out this research work in the Department of Computer Applications, Bharathiar University, India.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Funding

UGC BSR [grant number F4-1/2006(BSR)/11-144/2010(BSR)].

Notes on contributors

P. Bhuvaneswari

P. Bhuvaneswari is pursuing PhD degree in computer science, Department of Computer Applications, School of Computer Science and Engineering, Bharathiar University, Coimbatore, Tamil Nadu, India. Her area of interest includes signal processing and machine learning.

E-mail: [email protected]

J. Satheesh Kumar

J. Satheesh Kumar is with the Department of Computer Applications, School of Computer Science and Engineering, Bharathiar University, Coimbatore, Tamil Nadu, India. He is having 15 plus years of research and teaching experience. His area of specialization includes soft computing, networks, image processing, and medical imaging.

E-mail: [email protected]