Maryland's Defense Patent Database

The defense community in Maryland is an R&D powerhouse.

Use this database to see the innovative patents that are poised for commercialization.

Real-time lines-of-sight and viewsheds determination system

Patent image
NRL

A method for processing three-dimensional data that defines a three-dimensional scene, and determining and displaying lines-of-sight (LOS) and viewsheds on all visible surfaces of the scene, includes: i) assigning at a user-selected location at least one viewpoint in the scene; ii) applying ray tracing from locations in the scene to the viewpoint to determine locations in the scene that are in a line of sight (LOS) and outside the LOS of the viewpoint, thus determining the viewshed relative to the viewpoint while generating a set of color-coding information; iv) saving the set of color-coding information as a 2D texture image in graphics hardware memory; and v) compositing the 2D texture image over the 3D scene in a 3D window at a frame rate that enables real-time updating of the color coding as the scene is translated or rotated or the viewpoint is changed.

Inventors: 
Doyle Jr., Robert J.
Patent Number: 
Technical domain: 
IT and Software
FIle Date: 
2009-08-10
Grant Date: 
2013-03-19
Grant time: 
1,317 days
Grant time percentile rank: 
24
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
2
Assignee: 
US NAVY