US 12,276,523 B2
Methods and systems for providing a real-time viewshed visualization
Bert Jeffrey Lutzenberger, Hood River, OR (US)
Assigned to ONXMAPS, INC., Missoula, MT (US)
Filed by onXmaps, Inc., Missoula, MT (US)
Filed on Dec. 21, 2022, as Appl. No. 18/085,992.
Claims priority of provisional application 63/331,625, filed on Apr. 15, 2022.
Prior Publication US 2023/0332922 A1, Oct. 19, 2023
Int. Cl. G01C 21/00 (2006.01); G06T 15/60 (2006.01); G06T 17/05 (2011.01)
CPC G01C 21/3859 (2020.08) [G06T 15/60 (2013.01); G06T 17/05 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for generating a viewshed map for one or more client nodes, the method comprising:
(a) receiving a first set of light source data associated with an area;
(b) obtaining a set of elevation data associated with the area;
(c) generating a shadow map based at least in part on the first set of light source data and the elevation data associated with the area;
(d) receiving interactive position data from the one or more client nodes, wherein the interactive position data comprises a location of a reference point of view on the shadow map; and
(e) generating a real-time viewshed map visualization of the area as visible from a perspective of the reference point of view based at least in part on the shadow map and the interactive position data.