Research Article

On the Use of Electrooculogram for Efficient Human Computer Interfaces

Figure 4

The realized EOG-based device.
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(a) Electrode montage
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(b) Placed in metal box
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(c) User interface main menu. At the top line horizontal and vertical EOG signals can be observed on-line. The other options for virtual keyboard, needs, and movement control can be selected
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(d) Virtual keyboard with special characters
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(e) Virtual keyboard (like P300 speller applications)