Assessing the data quality of AdHawk MindLink eye-tracking glasses.

Area of Science:

• Ophthalmology
• Human-Computer Interaction
• Biomedical Engineering

Background:

• Traditional eye-tracking relies on cameras and image processing.
• Emerging cameraless technologies offer high-speed gaze tracking.
• MEMS-based eye-tracking glasses represent a novel approach.

Purpose of the Study:

• To compare the data quality of MEMS-based eye-tracking glasses (AdHawk MindLink) with established camera-based devices.
• To evaluate accuracy, precision, data loss, and system latency.
• To assess the potential of cameraless eye-tracking for research.

Main Methods:

• Comparative testing of AdHawk MindLink against EyeLink Portable Duo, Tobii Pro Glasses 2, and SMI Eye Tracking Glasses 2.
• Assessment of key data quality metrics: accuracy, precision, data loss, and system latency.
• Focus on performance differences between MEMS-based and camera-based eye-tracking.

Main Results:

• Overall data quality of eye-tracking glasses was lower than the desktop EyeLink Portable Duo.
• AdHawk MindLink demonstrated accuracy and precision comparable to or better than Tobii Pro Glasses 2 and SMI Eye Tracking Glasses 2.
• AdHawk MindLink exhibited a system latency of approximately 9 ms, significantly lower than camera-based VR devices.

Conclusions:

• MEMS-based eye-tracking glasses show promise for research applications.
• AdHawk MindLink is suitable for studies prioritizing high sampling rates and low latency.
• Further development may enhance the overall data quality of cameraless eye-tracking systems.