Eye Tracking Calibration Demo
Experience how eye tracking works with this interactive mouse-based simulation. See heatmaps, fixation points, and scanpaths — just like professional eye tracking software.
This is a mouse-based simulation. Real eye tracking uses infrared cameras and specialized algorithms to detect pupil position and corneal reflections.
How Real Eye Tracking Works
1. Pupil Detection
An infrared camera illuminates the eye. The pupil appears as a dark circle — computer vision algorithms locate it precisely.
2. Corneal Reflection
An infrared LED creates a glint on the cornea. The vector from pupil to glint determines the direction of gaze.
3. Gaze Estimation
A mathematical model maps the pupil-glint vector to screen coordinates. Calibration personalizes this model for each user.
4. Fixation Analysis
Gaze points are analyzed: clusters form fixations, rapid movements are saccades, and the sequence creates a scanpath for UX research.