Using eye movement to control a computer: a design for a lightweight electro-oculogram electrode array and computer...

Area of Science:

• Biomedical Engineering
• Human-Computer Interaction
• Neuroscience

Background:

• Electro-oculography (EOG) measures eye movement via potential differences between cornea and retina.
• Traditional EOG electrode placement is cumbersome and uncomfortable for users.
• Existing EOG interfaces require further development for practical application.

Purpose of the Study:

• To develop a comfortable and user-friendly EOG-based human-computer interface.
• To create a novel EOG system that integrates electrodes into glasses.
• To design an advanced processing algorithm for accurate gaze and blink detection.

Main Methods:

• Designed novel EOG glasses integrating electrodes for improved comfort and ease of use.
• Developed a new signal processing algorithm to interpret EOG signals.
• Tested the system's ability to detect gaze direction and eye blinks.
• Evaluated user control of a cursor on a video screen.

Main Results:

• The EOG glasses provided a comfortable and non-invasive method for eye movement recording.
• The new algorithm accurately detected gaze direction and eye blinks from EOG signals.
• Subjects successfully controlled a dot's movement on a screen using the developed interface.

Conclusions:

• The developed EOG interface offers a promising, comfortable, and effective method for computer interaction.
• Integrated EOG glasses represent a significant improvement over traditional electrode placement.
• This technology has potential applications in assistive technology and gaming.