Apple Inc.
Eye Tracking Using Eye Odometers

Abstract:

Low-power eye tracking for detecting position and movements of a user's eyes in a head-mounted device (HMD). An eye tracking system for an HMD may include eye tracking cameras and eye odometers that may reduce power consumption of the system. The eye odometers may be used as a low-power component to track relative movement of the user's eyes with respect to the HMD between frames captured by the eye tracking cameras, which may allow the frame rate of the eye tracking cameras to be reduced.