Patent ID: 9280829
Filing Date: 2016-03-08
CPC Classification: G01B,G06T,H04N

Claim Text:
1. A method to determine depth information for a scene, comprising: projecting, from a projector, a structured light pattern onto the scene, wherein the structured light pattern projected onto the scene includes dots of light arranged in a grid pattern; capturing, with a camera, an image of the scene that includes a representation of the structured light pattern; accessing calibration data, the calibration data including a first linear function that determines points on a first line that includes a first calibration dot within the a first calibration image and a corresponding first calibration dot within a second calibration image and a second linear function that determines points on a second line that includes a second calibration dot within the first calibration image and a corresponding second calibration dot within the second calibration image; identifying a representation of a first projected dot within the image of the scene, the first projected dot corresponding to the first calibration dot and to the corresponding first calibration dot; calculating first depth data for the first projected dot using the first linear function, the first depth data indicating a first distance of the first projected dot from the projector; identifying a representation of a second projected dot within the image of the scene, the second projected dot corresponding to the second calibration dot and to the corresponding second calibration dot; and calculating second depth data for the second projected dot using the second linear function, the second depth data indicating a second distance of the second projected dot from the projector.