High-speed eye tracking based on a synchronized imaging mechanism by a dual-ring infrared lighting source.
Appl Opt
; 63(16): 4293-4302, 2024 Jun 01.
Article
in En
| MEDLINE
| ID: mdl-38856606
ABSTRACT
It is a challenge for conventional monocular-camera single-light source eye-tracking methods to achieve high-speed eye tracking. In this work, a dual-ring infrared lighting source was designed to achieve bright and dark pupils in high speed. The eye-tracking method used a dual-ring infrared lighting source and synchronized triggers for the even and odd camera frames to capture bright and dark pupils. A pupillary corneal reflex was calculated by the center coordinates of the Purkinje spot and the pupil. A map function was established to map the relationship between the pupillary corneal reflex and gaze spots. The gaze coordinate was calculated based on the mapping function. The average detection time of each gaze spot was 3.76 ms.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Lighting
/
Eye-Tracking Technology
/
Infrared Rays
Limits:
Humans
Language:
En
Journal:
Appl Opt
Year:
2024
Document type:
Article