Simple Wearable Eye Tracker With Mini-Infrared Point Sensors

In this study, we developed a wearable eye tracker leveraging mini-infrared point sensors. The eye tracker utilized two inexpensive mini-infrared ray (IR) point sensors to measure the left-right eye movements of both eyes. These left-right eye movements, play a crucial role in monitoring and treatin...

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Bibliographic Details
Published in:IEEE access 2024, Vol.12, p.41019-41026
Main Authors: Chang, Sung Jae, Lee, Ji-Yeon, Kim, Soo-Il, Lee, Sang-Yun, Lee, Dong Woo
Format: Article
Language:English
Subjects:
Algorithms
Correlation coefficients
Desensitization
Eye movements
Eye tracker
eye-movement desensitization and reprocessing
Eyes
Frequency measurement
Human factors
Infrared detectors
infrared sensor
Infrared sensors
Infrared tracking
Mental disorders
Particle measurements
Position measurement
post-traumatic stress disorder
Psychological stress
Reprocessing
Sensors
Stress
Tracking
Wearable sensors
Wearable technology
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Summary:In this study, we developed a wearable eye tracker leveraging mini-infrared point sensors. The eye tracker utilized two inexpensive mini-infrared ray (IR) point sensors to measure the left-right eye movements of both eyes. These left-right eye movements, play a crucial role in monitoring and treating mental disorders such as post-traumatic stress disorder, and are also essential in eye movement desensitization and reprocessing therapy (EMDR). The proposed eye tracker can track a user's eye movements by detecting the left-right pupils. We developed a dual sensor positioning algorithm that measures the left-right movements of both eyes using only two sensors. The strategy of positioning the sensor symmetrically between or outside the eyes allows for the precise measurement of the movements of both eyes. To validate the proposed wearable eye tracker, we analyzed the left and right eye movements of 10 participants and found that there was no statistically significant difference. Further analysis demonstrated a high correlation between the measured eye-movement and the input eye-movement frequency (Spearman's correlation coefficient: 0.9619). The proposed device showed the feasibility of employing a wearable and inexpensive eye tracker with only two mini-IR point sensors to accurately measure the left-right movements of both eyes.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2024.3366338