Figure 3
From: An eye tracking based virtual reality system for use inside magnetic resonance imaging systems
Illustration of the system pipeline: the eye tracking stage tracks the eye corner and pupil location for each eye. The gaze estimation module uses the eye tracking results to build an initial regression model which is then updated by interactive calibration. The gaze information is fed into the VR system to trigger interactions. Interactive progressive calibration is executed in the background when interactions are triggered. This mechanism can progressively improve the gaze regression model accuracy without changing the user experience.
