Eye trackers are devices that track eye movements. Eye trackers can estimate where the user is looking after a calibration procedure. During calibration the user is asked to look at a few target points on the computer screen. Mapping the eye movements to screen points is called gaze estimation.
Eye trackers are commonly found in two different setups:
- Remove Eye Trackers: the eye tracker is mounted on (or near) a computer display (typically using a desktop computer).
- Head Mounted Eye Trackers: the eye tracker is mounted on a helmet or glasses to allow the user freedom of movement.
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