| Presentation | 2005-09-16 Evaluation of Arithmetic Precision Required for a Reconfigurable Raytracing Machine with Triangle Patches Shougo NAKAMURA, Yuichiro SHIBATA, Kiyoshi OGURI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For efficient implementation of a raytracing machine on reconfigurable devices such as Field Programmable Gate Arrays (FPGAs), it is advantageous to use only fixed point arithmetic. In addition, reduction of the bit width of fixed-point arithmetic enables high performance parallel processing making the best use of multiple small arithmetic units in a reconfigurable device. In this paper, we compared the quality of graphics generated by floating point arithmetic and fixed point arithmetic, changing parameter such as a bit width, object size, position, number, and attribute to evaluate the arithmetic bit width required for a raytracing algorithm. Raytracing with triangle patches is similarly evaluated. Evaluation results show that 29-bit fixed point arithmetic is sufficient for the normal raytracing and 43-bit fixed point arithmetic is sufficient for the raytracing with triangle patches. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | image processing / raytracing / fixed point arithmetic |
| Paper # | RECONF2005-52 |
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| Conference Information | |
| Committee | RECONF |
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| Conference Date | 2005/9/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Reconfigurable Systems (RECONF) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of Arithmetic Precision Required for a Reconfigurable Raytracing Machine with Triangle Patches |
| Sub Title (in English) | |
| Keyword(1) | image processing |
| Keyword(2) | raytracing |
| Keyword(3) | fixed point arithmetic |
| 1st Author's Name | Shougo NAKAMURA |
| 1st Author's Affiliation | Graduate School of Science and Technology, Nagasaki University() |
| 2nd Author's Name | Yuichiro SHIBATA |
| 2nd Author's Affiliation | Faculty of Engineering, Nagasaki University |
| 3rd Author's Name | Kiyoshi OGURI |
| 3rd Author's Affiliation | Faculty of Engineering, Nagasaki University |
| Date | 2005-09-16 |
| Paper # | RECONF2005-52 |
| Volume (vol) | vol.105 |
| Number (no) | 288 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |