US 11,657,568 B2
Methods and systems for augmented reality tracking based on volumetric feature descriptor data
Nikhil Sadashiv Pantpratinidhi, El Dorado Hills, CA (US); Adwait Ashish Murudkar, Somerville, NJ (US); Gang Lin, Stilwell, KS (US); and Vinaya Kumar Polavarapu, Irving, TX (US)
Assigned to Verizon Patent and Licensing Inc., Basking Ridge, NJ (US)
Filed by Verizon Patent and Licensing Inc., Basking Ridge, NJ (US)
Filed on Apr. 30, 2021, as Appl. No. 17/245,920.
Prior Publication US 2022/0351465 A1, Nov. 3, 2022
Int. Cl. G06T 17/10 (2006.01); G06T 7/73 (2017.01); G06T 19/00 (2011.01); G06V 10/44 (2022.01)
CPC G06T 17/10 (2013.01) [G06T 7/73 (2017.01); G06T 19/006 (2013.01); G06V 10/443 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining, by an augmented reality tracking system, a volumetric feature descriptor dataset that is based on a plurality of master images depicting a plurality of views of a volumetric target, wherein:
the volumetric target is a three-dimensional (3D) object and the plurality of views of the volumetric target are views of the 3D object from vantage points distributed around the 3D object, and
the volumetric feature descriptor dataset includes:
a plurality of feature descriptors associated with a plurality of image features of the volumetric target, and
a plurality of three-dimensional (3D) structure datapoints including a corresponding 3D structure datapoint for each of the plurality of feature descriptors;
obtaining, by the augmented reality tracking system, an image frame captured by a user equipment (UE) device;
identifying, by the augmented reality tracking system, a set of image features depicted in the image frame;
detecting, by the augmented reality tracking system based on a match between the set of image features depicted in the image frame and a set of feature descriptors of the plurality of feature descriptors, that the volumetric target is depicted in the image frame; and
determining, by the augmented reality tracking system in response to the detecting and based on a set of 3D structure datapoints that correspond within the volumetric feature descriptor dataset to the set of feature descriptors detected in the match, a spatial relationship between the UE device and the volumetric target.