Design And Development Of BCI Application - Brain Painting Using SSVEP

Loh, Wai Yuen (2017) Design And Development Of BCI Application - Brain Painting Using SSVEP. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Steady-State Visual Evoked Potential (SSVEP) is a kind of EEG signal that acquired by visual stimulation through the human scalp.Some researchers have studied on providing mobility tools for disabled patients using the Brain-Computer Interface (BCI) method,however there are still limited applications using SSVEP.Therefore,the objective of this project is to develop a BCI application – Brain Painting using SSVEP.SSVEP signals were collected and analyzed to perform painting.In the first part,a stimulus with three different frequencies (10Hz,12Hz and 15Hz) was developed using Cyberlink Power Director.The subjects were asked to gaze on the stimulus for two experiments.Next,the ENOBIO20 was used to acquire the SSVEP signals from the subjects,and it was sent to computer via Bluetooth and analyzed using the MATLAB. Filter process was done to remove unwanted signals. Finally,the peak frequency of the signal was determined using frequency analysis method and the frequency was associated with different shapes to display on a computer screen.In conclusion,a BCI application – Brain Painting has been successfully developed.In this project,stimuli with accuracies of greater than 90% was developed.This project is suitable for disabled patients,sustainable and able to improve human living lifestyle.

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