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Published on: March 13, 2017
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Toward graphene textiles in wearable eye tracking systems for human-machine interaction
Ata Jedari Golparvar1, Murat Kaya Yapici1,2,3
1Faculty of Engineering and Natural Sciences, Sabanci University, TR-34956 Istanbul, Turkey.
Beilstein Journal of Nanotechnology
|February 22, 2021
Summary
This study introduces a novel graphene textile headband for wearable electrooculography (EOG) to enable seamless eye tracking. This low-cost, accessible technology allows for remote control of devices and typing via eye movements.
Area of Science:
- Biomedical Engineering
- Wearable Technology
- Human-Computer Interaction
Background:
- Electrooculography (EOG) measures eye movements via biopotential.
- Current eye-tracking systems are often bulky, expensive, and camera-based.
- Need for accessible, wearable technology for activity recognition and HCI/HMI.
Purpose of the Study:
- To develop a low-cost, wearable EOG device using graphene textiles.
- To demonstrate its potential as a personal assistive technology.
- To overcome limitations of conventional "wet" electrodes and camera-based systems.
Main Methods:
- Developed a self-contained wearable prototype with a headband featuring soft graphene textile electrodes.
- Integrated miniaturized, portable readout electronics with real-time signal processing.
- Utilized single-channel EOG acquisition for five different eye motions.
Main Results:
- Demonstrated control of a mouse cursor for virtual keyboard typing (up to 6 characters/min).
- Enabled navigation of a four-wheeled robot in a maze with 100% and 98% accuracy for typing and robot navigation, respectively.
- Achieved perfect pattern detection accuracies for all demonstrated eye motions.
Conclusions:
- Graphene textile-based EOG offers a viable, accessible alternative to traditional eye-tracking systems.
- The developed wearable prototype shows significant potential for personal assistive devices and HCI/HMI applications.
- Seamless sensing and real-time processing are achievable with this novel technology.
