| Presentation | 1998/11/19 Accelerated Volume Ray Casting using a Pair of Depth Maps Takanori NAGAE, Hiroshi NAGAHASHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In usual cases, most cells in a volume data set are empty, and this means almost all rendering time is wasted simply in traversing the empty cells along the viewing rays in raycasting computation. To accelerate raycasting, all the non-empty cells are sandwiched by a pair of pre-calculated depth maps, and 3DDDA is only applied to the interval. Also a shadow map is used to eliminate 3DDDA process from shadowing. Additionally, we study and compare some cubic root solvers necessary for intersecition tests of trilinearly interpolated isosurfaces. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | depth map pair / shadow map / volume ray casting / trilinearly interpolant / cubic solver |
| Paper # | IE98-78 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 1998/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accelerated Volume Ray Casting using a Pair of Depth Maps |
| Sub Title (in English) | |
| Keyword(1) | depth map pair |
| Keyword(2) | shadow map |
| Keyword(3) | volume ray casting |
| Keyword(4) | trilinearly interpolant |
| Keyword(5) | cubic solver |
| 1st Author's Name | Takanori NAGAE |
| 1st Author's Affiliation | Department of Music Media, Shobil Junior College.() |
| 2nd Author's Name | Hiroshi NAGAHASHI |
| 2nd Author's Affiliation | Imaging Science and Engineering Laboratory, Faculty of Engineering, Tokyo Institute of Technology. |
| Date | 1998/11/19 |
| Paper # | IE98-78 |
| Volume (vol) | vol.98 |
| Number (no) | 421 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |