Engineering

Volume 5, Issue 10 (October 2013)

ISSN Print: 1947-3931   ISSN Online: 1947-394X

Google-based Impact Factor: 0.66  Citations  

Mean Threshold and ARNN Algorithms for Identification of Eye Commands in an EEG-Controlled Wheelchair

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DOI: 10.4236/eng.2013.510B059    3,309 Downloads   4,622 Views  Citations

ABSTRACT

This paper represented Autoregressive Neural Network (ARNN) and meant threshold methods for recognizing eye movements for control of an electrical wheelchair using EEG technology. The eye movements such as eyes open, eyes blinks, glancing left and glancing right related to a few areas of human brain were investigated. A Hamming low pass filter was applied to remove noise and artifacts of the eye signals and to extract the frequency range of the measured signals. An autoregressive model was employed to produce coefficients containing features of the EEG eye signals. The coefficients obtained were inserted the input layer of a neural network model to classify the eye activities. In addition, a mean threshold algorithm was employed for classifying eye movements. Two methods were compared to find the better one for applying in the wheelchair control to follow users to reach the desired direction. Experimental results of controlling the wheelchair in the indoor environment illustrated the effectiveness of the proposed approaches.

Share and Cite:

Hai, N. , Trung, N. and Toi, V. (2013) Mean Threshold and ARNN Algorithms for Identification of Eye Commands in an EEG-Controlled Wheelchair. Engineering, 5, 284-291. doi: 10.4236/eng.2013.510B059.

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