US 9,813,692 B2
Online compensation of thermal distortions in a stereo depth camera
Aviad Zabatani, Even Yehuda (IL); Sagy Bareket, Haifa (IL); Ohad Menashe, Haifa (IL); Erez Sperling, D.N. Menashe (IL); Alex Bronstein, Haifa (IL); Michael Bronstein, Lugano (CH); Ron Kimmel, Haifa (IL); and Vitaly Surazhsky, Yokneam Illit (IL)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Sep. 25, 2015, as Appl. No. 14/865,196.
Prior Publication US 2017/0094255 A1, Mar. 30, 2017
Int. Cl. H04N 13/02 (2006.01); H04N 13/00 (2006.01)
CPC H04N 13/0246 (2013.01) [H04N 13/025 (2013.01); H04N 13/0253 (2013.01); H04N 2013/0081 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a projector configured to project a sequence of light patterns on an object;
a first camera configured to capture a sequence of images of the object illuminated with the projected light patterns;
one or more temperature sensors;
a thermal correction unit responsive to temperature information from the one or more temperature sensors to adjust one or more of calibration parameters of the first camera and the projector; and
a processing unit to receive the sequence of images and determine depth information in response to the one or more adjusted calibration parameters of the camera and the projector, wherein the processing unit is configured to determine the depth information with a triangulation process using the one or more adjusted calibration parameters.