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

Eduardo Iáñez¹, Jose M Azorin, Carlos Perez-Vidal

¹Biomedical Neuroengineering Group, Miguel Hernandez de Elche University, Elche, Spain. eianez@umh.es

|July 12, 2013

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This study introduces an electro-oculography (EOG) system using comfortable glasses to track eye movements for computer interaction. The novel interface reliably controls on-screen elements through gaze direction and blinks.

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.

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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.