| Presentation | 2014-07-01 Influence of Difference between Image Focal Length and Screen Distance on Observed Image in Retro-reflective Projection Technology Tomoki KAMIYA, Masahiro SEKO, Masahiko INAMI, Yasuyuki YANAGIDA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Retro-reflective Projection Technology (RPT) is a method of visual display that employs retro-reflective material as a screen and a projector. RPT has been effectively used as a part of augmented and mixed reality systems. In previous studies, we assumed retro-reflective material has an ideal property, i. e., the projected light is perfectly reflected back in the incident direction. Based on this assumption, the projected images should be observed clearly regardless of screen distance. However, a blurred image was observed when the retro-reflective screen is located very close to the eyes. As a cause of this phenomenon, we suspected the non-ideal structure of retro-reflective material. In this study, we compared the images projected on a retro-reflective screen from various distances, while observing images projected on a conventional white screen as references. We observed different types of image deterioration on the white screen and retro-reflective screen. We analyzed this deterioration and indicated the effect of the density of micro-beads on it. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Retro-reflective Technology / augmented reality / focal length |
| Paper # | MVE2014-23 |
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| Conference Information | |
| Committee | MVE |
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| Conference Date | 2014/6/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Media Experience and Virtual Environment (MVE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Influence of Difference between Image Focal Length and Screen Distance on Observed Image in Retro-reflective Projection Technology |
| Sub Title (in English) | |
| Keyword(1) | Retro-reflective Technology |
| Keyword(2) | augmented reality |
| Keyword(3) | focal length |
| 1st Author's Name | Tomoki KAMIYA |
| 1st Author's Affiliation | Faculty of Science and Engineering, Meijo University() |
| 2nd Author's Name | Masahiro SEKO |
| 2nd Author's Affiliation | Faculty of Science and Engineering, Meijo University |
| 3rd Author's Name | Masahiko INAMI |
| 3rd Author's Affiliation | Graduate School of Media Design, Keio University |
| 4th Author's Name | Yasuyuki YANAGIDA |
| 4th Author's Affiliation | Faculty of Science and Engineering, Meijo University |
| Date | 2014-07-01 |
| Paper # | MVE2014-23 |
| Volume (vol) | vol.114 |
| Number (no) | 114 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |