The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2020
Filed:
May. 10, 2017
Facebook, Inc., Menlo Park, CA (US);
Guan Pang, Menlo Park, CA (US);
Jing Huang, Menlo Park, CA (US);
Balmanohar Paluri, Mountain View, CA (US);
Brian Karrer, San Francisco, CA (US);
Ismail Onur Filiz, El Cerrito, CA (US);
Birce Tezel, Berkeley, CA (US);
Nicolas Emilio Stier Moses, Palo Alto, CA (US);
Vishakan Ponnampalam, Palo Alto, CA (US);
Timothy Eric Danford, Redwood City, CA (US);
Facebook, Inc., Menlo Park, CA (US);
Abstract
In one embodiment, a method includes accessing a point cloud comprising several points, wherein each point corresponds to a location on a surface of an object located in three-dimensional space; determining whether each point in the point cloud is part of a linear structure, a planar structure, or a volumetric structure; identifying a plurality of point clusters, wherein each point cluster comprises one or more points that are located within a grid segment on a two-dimensional grid derived from the three-dimensional space; determining, for each point cluster, whether the point cluster represents a vertical-linear structure or a portion of a vertical-linear structure; identifying one or more point-cluster pairs, wherein each point-cluster pair includes two point clusters corresponding to one or more vertical-linear structures within a threshold distance in the three-dimensional space; and determining, for each point-cluster pair, whether a line-of-sight exists between each point-cluster in the point-cluster pair.