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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; and iii) color-coding every visible surface in the scene. The color coding then differentially indicates the locations in the line of sight (LOS) and outside the LOS of the viewpoint, producing a display of a color-coded viewshed relative to the viewpoint. Additionally ray tracing can be applied from locations above the scene to determine headroom contours for those locations in the scene.

Inventors: 
Doyle Jr., Robert J.
Patent Number: 
Technical domain: 
IT and Software
FIle Date: 
2008-11-26
Grant Date: 
2012-12-04
Grant time: 
1,469 days
Grant time percentile rank: 
27
Claim count percentile rank: 
4
Citations percentile rank: 
1
'Cited by' percentile rank: 
2
Assignee: 
US NAVY