Patent Document ID: 9245307
Application ID: 13381329
Patent Status: 1

Claim One:
1. A method to track camera movement in Augmented Reality (AR) systems using structured light projections, the method comprising: projecting at least one structured light pattern in pulses from a structured light source onto a portion of an AR scene, wherein the pulses are synchronized with an opening and a closing of a shutter of an AR image capture unit, and a duration of each pulse is shorter than an open shutter duration of the AR image capture unit in order to reduce a blur associated with a motion of the AR image capture unit, and wherein the at least one structured light pattern is projected by the structured light source when the structured light source is positioned in a same horizontal and a same vertical plane as the AR image capture unit to facilitate preservation of a consistent origination point of the at least one structured light pattern; detecting a reflected structured light pattern from one or more portions of the AR scene utilizing an image sensor in proximity of the AR image capture unit; comparing the detected structured light pattern to a previously detected structured light pattern; determining a change in an AR image capture unit location based on a comparison; correlating the change in the AR image capture unit location with one or more captured images of the AR scene; and tracking an AR image capture unit movement relative to the AR scene based on determination of changes in the detected structured light pattern.