| Presentation | 2021-06-01 Improving the Contrast Ratio of Pixel-level Visible Light Communication Projectors Using Blinking Control of Light Sources Yuki Kakui, Ikuo Kamei, Ken Takaki, Changyo Han, Shogo Fukushima, Takeshi Naemura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | PVLC (Pixel-level Visible Light Communication) projector, which can embed invisible information on images, displays images and information in time division. Therefore, it has a problem that the contrast ratio of images deteriorates as the amount of information increases. This paper proposes a bright control method that improves the contrast ratio by both blinking the light sources for the entire screen and switching the DMD for individual pixels in the information projection part. The improvement of the contrast ratio or the amount of information is shown and the image quality is checked using a PVLC projector. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Visible Light Communication / Pixel-Level Visible Light Communication / DMD / Light Source Control |
| Paper # | MVE2021-2 |
| Date of Issue | 2021-05-25 (MVE) |
| Conference Information | |
| Committee | MVE / ITE-HI / VRSJ |
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| Conference Date | 2021/6/1(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masayuki Ihara(RIKEN) / Tatsuya Yoshizawa(Kanazawa Inst. of Tech.) |
| Vice Chair | Kiyoshi Kiyokawa(NAIST) |
| Secretary | Kiyoshi Kiyokawa(Oosaka Inst. of Tech.) / (NTT) / (Univ. of ToKyo) |
| Assistant | Naoya Isoyama(NAIST) / Takenori Hara(DNP) / Mitsuhiro Goto(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Media Experience and Virtual Environment / Technical Group on Human Information / The Virtual Reality Society of Japan |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving the Contrast Ratio of Pixel-level Visible Light Communication Projectors Using Blinking Control of Light Sources |
| Sub Title (in English) | |
| Keyword(1) | Visible Light Communication |
| Keyword(2) | Pixel-Level Visible Light Communication |
| Keyword(3) | DMD |
| Keyword(4) | Light Source Control |
| 1st Author's Name | Yuki Kakui |
| 1st Author's Affiliation | The University of Tokyo(UT) |
| 2nd Author's Name | Ikuo Kamei |
| 2nd Author's Affiliation | The University of Tokyo(UT) |
| 3rd Author's Name | Ken Takaki |
| 3rd Author's Affiliation | The University of Tokyo(UT) |
| 4th Author's Name | Changyo Han |
| 4th Author's Affiliation | The University of Tokyo(UT) |
| 5th Author's Name | Shogo Fukushima |
| 5th Author's Affiliation | The University of Tokyo(UT) |
| 6th Author's Name | Takeshi Naemura |
| 6th Author's Affiliation | The University of Tokyo(UT) |
| Date | 2021-06-01 |
| Paper # | MVE2021-2 |
| Volume (vol) | vol.121 |
| Number (no) | MVE-53 |
| Page | pp.pp.7-12(MVE), |
| #Pages | 6 |
| Date of Issue | 2021-05-25 (MVE) |