US 11,995,847 B2
Glasses-free determination of absolute motion
Sergio Aguirre-Valencia, San Jose, CA (US); and Janet H. Goldenstein, San Carlos, CA (US)
Assigned to Echo Pixel, Inc., Santa Clara, CA (US)
Filed by EchoPixel, Inc., Santa Clara, CA (US)
Filed on Sep. 24, 2022, as Appl. No. 17/952,235.
Application 17/952,235 is a continuation of application No. 16/791,005, filed on Feb. 14, 2020, granted, now 11,461,907.
Claims priority of provisional application 62/805,963, filed on Feb. 15, 2019.
Prior Publication US 2023/0022782 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 7/292 (2017.01); G06F 3/01 (2006.01); G06T 7/00 (2017.01); H04N 13/00 (2018.01); H04N 13/239 (2018.01)
CPC G06T 7/292 (2017.01) [G06F 3/013 (2013.01); G06F 3/017 (2013.01); G06T 7/0014 (2013.01); H04N 13/239 (2018.05); G06T 2207/10012 (2013.01); G06T 2207/30041 (2013.01); H04N 2013/0085 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
multiple image sensors, having different fields of view and positions, configured to capture images, wherein the electronic device is configured to:
capture the images using the image sensors;
determine, based at least in part on apparent sizes of an object in the images and a predefined or predetermined size of the object, absolute motion of at least a portion of an individual along a direction between at least the portion of the individual and the electronic device, wherein the object is an average or mean interpupillary distance;
estimate a distance along the direction based at least in part on at least one of the apparent sizes of the object in at least one of the images and the predefined or predetermined size of the object; and
compute, based at least in part on the estimated distance and angular information associated with one or more second objects in the images relative to the positions, absolute motion of at least the portion of the individual in a plane that is perpendicular to the direction.