Real-time conformal terrain rendering

Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C345S427000, C345S502000, C345S503000, C345S504000, C345S506000

Reexamination Certificate

active

07612775

ABSTRACT:
A method for rendering a real-time conformal view of terrestrial body's terrain being traversed by a mobile platform includes storing digital terrain elevation data (DTED) tiles for at least a portion of the terrain of a terrestrial body into an external removable mass data storage device (ERMDSD). The ERMDSD is connectable to an onboard computer system (OCS) comprising embedded mobile platform components that include at least one processing card, at least random access memory (RAM) device and at least one graphics card. The method additionally includes executing a real-time rendering assist application (RTRAA) stored in the processing card to dynamically repackage the DTED tiles into DTED chunks being representative of an area of the terrestrial body to be traversed (ATBT) by the mobile platform. The method further includes executing the RTRAA to create a base mesh of root diamonds representative of the ATBT and tessellate the root diamonds to create a plurality of leaf diamonds. Further yet the method includes utilizing the graphics card only to render the leaf diamonds, thereby generating a realtime conformal view of the ATBT.

REFERENCES:
patent: 5179638 (1993-01-01), Dawson et al.
patent: 5808617 (1998-09-01), Kenworthy et al.
patent: 5852443 (1998-12-01), Kenworthy
patent: 5949428 (1999-09-01), Toelle et al.
patent: 5974423 (1999-10-01), Margolin
patent: 5990904 (1999-11-01), Griffin
patent: 6208997 (2001-03-01), Sigeti et al.
patent: 6288721 (2001-09-01), Donoghue et al.
patent: 6317690 (2001-11-01), Gia
patent: 6342884 (2002-01-01), Kamen et al.
patent: 6359624 (2002-03-01), Kunimatsu
patent: 6401038 (2002-06-01), Gia
patent: 6525726 (2003-02-01), Xie et al.
patent: 6567087 (2003-05-01), Reid
patent: 6600489 (2003-07-01), Cook
patent: 6674433 (2004-01-01), Junkins
patent: 6700573 (2004-03-01), Freeman
patent: 6714196 (2004-03-01), McCormack et al.
patent: 6856320 (2005-02-01), Rubinstein et al.
patent: 6862501 (2005-03-01), He
patent: 6906716 (2005-06-01), Moreton et al.
patent: 6980224 (2005-12-01), Wiant, Jr.
patent: 7027046 (2006-04-01), Zhang
patent: 7081903 (2006-07-01), McNamara et al.
patent: 7123260 (2006-10-01), Brust
patent: 7239311 (2007-07-01), Dunn et al.
patent: 7245299 (2007-07-01), Sfarti
patent: 7436405 (2008-10-01), Petterson et al.
patent: 2001/0023390 (2001-09-01), Gia
patent: 2001/0047229 (2001-11-01), Staggs
patent: 2002/0060685 (2002-05-01), Handley et al.
patent: 2002/0080145 (2002-06-01), Ishihara
patent: 2002/0101419 (2002-08-01), Cook
patent: 2002/0130857 (2002-09-01), Perry et al.
patent: 2002/0135591 (2002-09-01), Zhang
patent: 2003/0023354 (2003-01-01), Brust et al.
patent: 2003/0080960 (2003-05-01), Chang
patent: 2003/0085896 (2003-05-01), Freeman
patent: 2003/0151602 (2003-08-01), Sadowsky et al.
patent: 2004/0061726 (2004-04-01), Dunn et al.
patent: 2004/0083038 (2004-04-01), He
patent: 2004/0227755 (2004-11-01), Sfarti
patent: 2005/0264566 (2005-12-01), Sommers
patent: 2008/0049018 (2008-02-01), Sfarti
Lindstrom, P. et al., “Visualization of large terrains made easy” Proceedings of the Conference on Visualization '01, Oct. 21-26, 2001, Visualization, IEEE Computer Society, Washington, DC, pp. 363-371.
Lindstrom, P., et al., “Real-time, continuous level of detail rendering of height fields”, Proceedings of the 23rd Annual Conference on Computer Graphics and interactive Techniques, SIGGRAPH '96, ACM, New York, NY, pp. 109-118.
Hwa, et al., “Adaptive 4-8 Texture Hierarchies”, Proceedings of the Conference on Visualization '04, Oct. 10-15, 2004, IEEE Visualization. IEEE Computer Society, Washington, DC, pp. 219-226.
Duchaineau, et al., “ROAMing terrain: real-time optimally adapting meshes”, Proceedings of the 8th Conference on Visualization '97, Oct. 18-24, 1997, R. Yagel and H. Hagen, Eds., IEEE Visualization, IEEE Computer Society Press, pp. 81-88.
Döllner, J., et al., “Texturing techniques for terrain visualization”, Proceedings of the Conference on Visualization '00, Oct. 8-13, 2000, IEEE Visualization, IEEE Computer Society Press, Los Alamitos, CA, pp. 227-234.
Mark Duchaineau, “ROAM Algorithm Version 2”, Feb. 20, 2003, Google Results, 24 pages, http://www.cognigraph.com/ROAM—homepage/ROAM2/.
Ming Fan, et al., “A review of real-time terrain rendering techniques”, Proceedings of the 8th International Conference on Computer Supported Cooperative Work in Design, vol. 1, May 26-28, 2004, pp. 685-691.
Gregorski, B., et al., “Interactive view-dependent rendering of large isosurfaces”, Proceedings of the Conference on Visualization '02, Oct. 27-Nov. 1, 2002, Visualization, IEEE Computer Society, Washington, DC, pp. 475-484.
H.Hakl, L.Van Zijl, “Diamond Terrain Algorithm: Continuous Levels of Detail for Height Fields”, South African Computer Journal, Issue 29, 2002, pp. 1-17.
Levenberg, J., “Fast view-dependent level-of-detail rendering using cached geometry”, Proceedings of the Conference on Visualization '02, Oct. 27-Nov. 1, 2002, Visualization, IEEE Computer Society, Washington, DC, pp. 259- 266.
Lindstrom, P. et al., “Visualization of large terrains made easy” Proceedings of the Conference on Visualization '01, Oct. 21-26, 2001, Visualization, IEEE Computer Society, Washington, DC, pp. 363-371.
Lindstrom, P., et al., “Real-time, continuous level of detail rendering of height fields”, Proceedings of the 23rd Annual Conference on Computer Graphics and interactive Techniques, SIGGRAPH '96, Aug. 1996, ACM, New York, NY, pp. 109-118.
ROAMing Terrain: Real-time Optimally Adapting Meshes. Proc. Visualization '97, p. 81-88. IEEE Computer Society Press, Oct. 1997, Duchaineau, Wolinsky, Sigeti, Miller, Aldrich and Mineev-Weinstein.
MIL-PRF-89020A, Performance Specification, Digital Terrain Elevation Data (DTED), Apr. 1999.
ROAM Algorithm-the Diamond Data Stucture. Mark Duchaineau, Feb. 2003.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Real-time conformal terrain rendering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Real-time conformal terrain rendering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real-time conformal terrain rendering will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4062610

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.