6. Conclusion
In this paper, we proposed a multi-purposes eye-movement
tracking system. Integrating Electro-Oculography (EOG) installations
we detected the signal with different directions in eye-movements
and then analyzed to understand what they represented
about (e.g. horizontal direction or vertical direction). We converted
the analog signal to digital signal and then used as the control signals
for Human–Computer Interface (HCI). We finally accomplished
the multi-purposes eye-movement HCI platform, and this
system cost was much lower than other methods. The system
adapted the direction-sensor interface design, and the system
would be active according to the indicated direction. Users could
easily use this system and the precision of the system after adjustment
could get more than 90%.