%K Biomedical signal processing; Electroencephalography; Electrophysiology; Extraction; Feature extraction; Neural networks, EEG signals; Feature extraction methods; Human brain; Intelligent method; Intrinsic time-scale decompositions; Motor imagery; Nonstationary, Brain computer interface %R 10.1088/1742-6596/1123/1/012004 %A E. Abdalsalam Mohamed %A M. Zuki Yusoff %A I. Khalil Adam %A E. Ali Hamid %A F. Al-Shargie %A M. Muzammel %I Institute of Physics Publishing %V 1123 %N 1 %L scholars9591 %T Enhancing EEG Signals in Brain Computer Interface Using Intrinsic Time-Scale Decomposition %X A brain-computer interface (BCI) provides a link between the human brain and a computer. The EEG signal is nonlinear and non-stationary. Feature extraction is one of the most important steps in any BCI system; as such, enhancement to the existing methods has been incorporated in this work. For this, we propose a four-class movement imaginations of the right hand, left hand, both hands, and both feet, and develop feature extraction methods utilizing an intelligent method based on intrinsic time-scale decomposition (ITD) and Artificial neural networks (ANN). Based on the processed electroencephalography (EEG) data recorded from nine subjects, ITD accurately classified and discriminated the four classes of motor imagery; the average accuracy achieved is 92.20. © Published under licence by IOP Publishing Ltd. %J Journal of Physics: Conference Series %O cited By 4; Conference of 5th International Conference on Fundamental and Applied Sciences, ICFAS 2018 ; Conference Date: 13 August 2018 Through 15 August 2018; Conference Code:142772 %D 2018