Patent ID: 8913789
Filing Date: 2014-12-16
Classification: A61B,G01S,G02B,G03B,G06F,G06K,G06T,G09G,H04N

Abstract:
1. A computer-implemented method comprising: causing an imaging device that is associated with a head-mountable display (HMD) to capture image data that includes an eye; while the image data is being captured, causing a plurality of light sources that are attached to the HMD and generally directed towards the eye to switch on and off according to a predetermined pattern, wherein the predetermined pattern is such that at least two of the light sources are switched on at any given time while the image data of the eye is being recorded; analyzing, by a computing device, the image data of the eye to detect controlled glints that correspond to the plurality of light sources; and determining, by the computing device, a measure of eye position based on the controlled glints.