135629.fig.004a
(a) Electrode montage
135629.fig.004b
(b) Placed in metal box
135629.fig.004c
(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
135629.fig.004d
(d) Virtual keyboard with special characters
135629.fig.004e
(e) Virtual keyboard (like P300 speller applications)
Figure 4: The realized EOG-based device.