US 11,694,394 B2
Cross reality system for large scale environment reconstruction
Yilun Cao, San Jose, CA (US); Mohan Babu Kandra, San Ramon, CA (US); David Geoffrey Molyneaux, San Jose, CA (US); Daniel Olshansky, Mountain View, CA (US); David Paul Pena, Los Altos, CA (US); Frank Thomas Steinbrücker, Mountain View, CA (US); and Rafael Domingos Torres, Boca Raton, FL (US)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Filed by Magic Leap, Inc., Plantation, FL (US)
Filed on Sep. 21, 2022, as Appl. No. 17/949,599.
Application 17/949,599 is a continuation of application No. 17/185,558, filed on Feb. 25, 2021, granted, now 11,501,489.
Claims priority of provisional application 62/982,694, filed on Feb. 27, 2020.
Prior Publication US 2023/0013511 A1, Jan. 19, 2023
Int. Cl. G06T 17/00 (2006.01); G06F 3/01 (2006.01); G06T 19/00 (2011.01); G06T 7/55 (2017.01)
CPC G06T 17/00 (2013.01) [G06F 3/012 (2013.01); G06T 7/55 (2017.01); G06T 19/006 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/20221 (2013.01); G06T 2219/024 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
Identifying, for a first portable device at a first location in a three-dimensional (3D) physical environment, a first sparse map, the first portable device connected to a remote computing system for accessing sharable world data of the 3D physical environment that comprises a physical object, wherein
the plurality electronic devices include the plurality of portable devices having respective sparse maps installed thereupon;
Identifying, for a second portable device at a second location in the 3D physical environment, a second sparse map, the second portable device connected to the remote computing system for accessing the sharable world data; and
performing, by the second portable device, content persistence for a virtual content relative to the physical object at least by using a merged map, wherein the merged map is determined at least by merging a version of the first sparse map and a version of the second sparse map based at least in part upon one or more persistence coordinate frames (PCFs).