DocumentCode :
1496995
Title :
Design of a Novel Efficient Human–Computer Interface: An Electrooculagram Based Virtual Keyboard
Author :
Usakli, Ali Bulent ; Gurkan, Serkan
Author_Institution :
Tech. Sci. Dept., NCO Acad., Balkesir, Turkey
Volume :
59
Issue :
8
fYear :
2010
Firstpage :
2099
Lastpage :
2108
Abstract :
The aim of this paper is to present the design and application of an electrooculogram (EOG) based on an efficient human-computer interface (HCI). Establishing an alternative channel without speaking and hand movements is important in increasing the quality of life for the handicapped. EOG-based systems are more efficient than electroencephalogram (EEG)-based systems in some cases. By using a realized virtual keyboard, it is possible to notify in writing the needs of the patient in a relatively short time. Considering the biopotential measurement pitfalls, the novel EOG-based HCI system allows people to successfully communicate with their environment by using only eye movements. Classifying horizontal and vertical EOG channel signals in an efficient interface is realized in this study. The new system is microcontroller based, with a common-mode rejection ratio of 88 dB, an electronic noise of 0.6 μV (p-p), and a sampling rate of 176 Hz. The nearest neighborhood algorithm is used to classify the signals, and the classification performance is 95%. The novel EOG-based HCI system allows people to successfully and economically communicate with their environment by using only eye movements.
Keywords :
data acquisition; electro-oculography; human computer interaction; keyboards; medical signal processing; signal classification; EOG-based HCI system; EOG-based systems; common-mode rejection ratio; data acquisition; electronic noise; electrooculagram based virtual keyboard; frequency 176 Hz; horizontal EOG channel signal classification; human-computer interface design; microcontroller; nearest neighborhood algorithm; realized virtual keyboard; vertical EOG channel signal classification; Data acquisition; EOG-based system design; electrooculogram (EOG); electrooculography; human–computer interface (HCI); virtual keyboard;
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.2009.2030923
Filename :
5282570
Link To Document :
بازگشت