Removing ocular artifact of EEG signal using SOBI-RO on motor imagery experiment

Author

Turnip, Arjon ; Munandar, Aris ; Redhyka, Grace Gita ; Sebleku, Pius ; Firmanto, Angga Dwi ; Saragi, Togar ; Tumbelaka, Bernard Y.

Author_Institution

Technica Implementation Unit for Instrum. Dev., Indonesian Inst. of Sci., Bandung, Indonesia

fYear

2014

fDate

19-21 Aug. 2014

Firstpage

303

Lastpage

308

Abstract

Eye blinking known as ocular artifact cause changes to the electric fields over the scalp and as a result, EEG recordings are often significantly distorted and their interpretation problematic. In this paper, an algorithm using second order blind identification with robust orthogonalization (SOBI-RO) is used to remove the ocular artifact in a motor imagery experiment. Simulation results shows that the ocular artifacts are significantly removed and the sources of the brain activity are clearly identified. The identification performance using signal to distortion ratio value about 68.88% is achieved.

Keywords

electroencephalography; eye; medical signal processing; signal denoising; EEG signal recordings; SOBI-RO; brain activity source identification; electric fields; motor imagery experiment; ocular artifact removal; robust orthogonalization; second-order eye blind identification; signal-to-distortion ratio value; Band-pass filters; Brain; Covariance matrices; Distortion; Electroencephalography; Robustness; Software; EEG signal; Ocular Artifact; SOBI-RO;

fLanguage

English

Publisher

ieee

Conference_Titel

Technology, Informatics, Management, Engineering, and Environment (TIME-E), 2014 2nd International Conference on

Conference_Location

Bandung

Print_ISBN

978-1-4799-4806-2

Type

conf

DOI

10.1109/TIME-E.2014.7011636

Filename

7011636