Time of flight based eye tracker

A time of flight (ToF) eye tracker includes an illumination source configured to emit pulses of light toward a pupil of an eye, wherein the pulses of light are retroreflected by a retina of the eye. The ToF eye tracker also includes a camera assembly configured to detect the retroreflected pulses of...

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Bibliographische Detailangaben
Hauptverfasser: Cavin, Robert Dale, Ouderkirk, Andrew John, Fix, Alexander Jobe
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A time of flight (ToF) eye tracker includes an illumination source configured to emit pulses of light toward a pupil of an eye, wherein the pulses of light are retroreflected by a retina of the eye. The ToF eye tracker also includes a camera assembly configured to detect the retroreflected pulses of light. The ToF eye tracker also includes a controller configured to determine ToF information for one or more of the retroreflected pulses of light, and determine eye tracking information for the user's eye using the determined ToF information and a virtual eye model.