The Community for Technology Leaders
RSS Icon
Issue No.06 - June (1986 vol.6)
pp: 21-27
Ned Greene , New York Institute of Technology
Paul Heckbert , New York Institute of Technology
Creation of Omnimax animation by computer opens up fantastic new visual possibilities. Unfortunately, the fish-eye distortion of Omnimax film images complicates synthesis by computer, since most image-synthesis programs can create only perspective views. As an alternative to modifying existing image-synthesis programs to produce Omnimax projections directly, we present a method for creating them from multiple perspective views. Four perspective views of the environment are created, each a projection onto a face of a cube centered at the camera, and then a mapping program creates an Omnimax projection from them. To minimize aliasing during resampling, the mapping program uses the elliptical weighted average filter, a space-variant filter we developed for this application that computes a weighted average over an arbitrarily oriented elliptical area. This filter can also be used for texture mapping 3D surfaces.
Ned Greene, Paul Heckbert, "Creating Raster Omnimax Images from Multiple Perspective Views Using the Elliptical Weighted Average Filter", IEEE Computer Graphics and Applications, vol.6, no. 6, pp. 21-27, June 1986, doi:10.1109/MCG.1986.276738
1. Nelson L.Max, "Computer Graphics Distortion for IMAX and OMNIMAX Projection," Proc. Nicograph 83 Dec. 1983pp. 137-159
2. TomDuff, "Tools for 3-D Rendering," Computer Graphics (Proc. SIGGRAPH 85) July 1985 Vol. 19, No. 3, pp. 41-44
3. Nelson L.Max, "ATOMLLL-ATOMS with Shading and Highlight," Computer Graphics (Proc. SIGGRAPH 79) Aug. 1979 Vol. 13, No. 3, pp. 165-173
4. "News Update," Electronic Imaging Vol. 4, No. 2, pp. 18 Feb. 1985
5. NedGreene, "Applications of World Projections," Proc. Graphics Interface 86 May 1986
6. Charles E.Henderson and AgnisKaugars, "Satellite Imagery in the Production of an Omnimax Animated Film Sequence," Proc Nicograph 83 Dec. 1983pp. 127-136
7. Franklin C.Crow, "The Aliasing Problem in Computer Generated Shaded Images," Comm ACM Vol. 20, pp. 799-805 Nov. 1977
8. WilliamDungan Jr. , AnthonyStenger, and GeorgeSutty, "Texture Tile Considerations for Raster Graphics," Computer Graphics (Proc. SIGGRAPH 78) Aug. 1978 Vol. 12, No. 3, pp. 130-134
9. PaulHeckbert, "Survey of Texture Mapping," Proc. Graphics Interface 86 May 1986
10. Edwin E.Catmull, A Subdivision Algorithm for Computer Display of Curved Surfaces Dec. 1974
11. James F.Blinn and Martin E.Newell, "Texture and Reflection in Computer Generated Images," Comm ACM Vol. 19, No. 10, pp. 542-547 Oct. 1976
12. Eliot A.Feibush, MarcLevoy, and Robert L.Cook, "Synthetic Texturing Using Digital Filters," Computer Graphics (Proc. SIGGRAPH 80) July 1980 Vol. 14, No. 3, pp. 294-301
13. MichelGangnet, DidierPerny, and PhilippeCoueignoux, "Perspective Mapping of Planar Textures," Proc. Eurographics 82 1982pp. 57-71 (slightly superior to version in Computer Graphics, Vol. 16, No. 1, May 1982, pp.70-100)
14. LanceWilliams, "Pyramidal Parametrics," Computer Graphics (Proc. SIGGRAPH 83) July 1983 Vol. 17, No. 3, pp. 1-11
15. Franklin C.Crow, "Summed-Area Tables for Texture Mapping," Computer Graphics (Proc. SIGGRAPH 84) July 1984 Vol. 18, No. 3, pp. 207-212
16. KennethPerlin, SIGGRAPH 85 State of the Art in Image Synthesis Seminar , July 1985
17. KennethTurkowski, "Anti-Aliasing Through the Use of Coordinate Transformations," ACM Trans. Graphics Vol. 1, No. 3, pp. 215-234 July 1982
18. Alvy RaySmith, SIGGRAPH 80 Animation Graphics Seminar Notes , July 1980
19. Edwin E.Catmull and Alvy RaySmith, "3-D Transformations of Images in Scanline Order," Computer Graphics (Proc. SIGGRAPH 80) July 1980 Vol. 14, No. 3, pp. 279-285
20. DonaldFraser, Robert A.Schowengerdt, and IanBriggs, "Rectification of Multichannel Images in Mass Storage Using Image Transposition," Computer Vision Graphics and Image Processing Vol. 29, No. 1, pp. 23-36 Jan. 1985
21. Patrice M.Wagner, Computer Graphics World , Oct. 1984pp. 10-16
22. CalKirchhof, The Big Frame , Spring 1985pp. 9-12
23. Paul S.Heckbert, "Making The Magic Egg: A Personal Account," IEEE CG&A Vol. 6, No. 6, pp. 3-8 June 1986
5 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool