| Paper Abstract and Keywords |
| Presentation |
2026-09-24 13:50
Distortion-Free Underwater Imaging in a Spherical Water Tank Using a Plane-Symmetric Imaging Optical System
Keigo Fukuda, Ryotaro Umemoto, Kengo Fujii (NUT), Yendo Tomohiro (TCU), Masahiro Iwahashi (NUT) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Aerial displays enable images to be viewed in midair without the need for special eyewear and have been applied to various fields, including outdoor advertising and museum exhibitions. By setting the image formation position of an aerial display underwater, images can be displayed as if they were floating in water, enabling applications such as aquarium exhibits. However, refraction caused by the water surface and the walls of the water tank results in image distortion and displacement of the image formation position. Therefore, this study aims to achieve distortion-free image formation underwater regardless of the shape of the container. We propose a method for constructing a plane-symmetric optical system using double imaging. A prototype system was fabricated, and experiments were conducted to verify the effectiveness of the proposed method. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Aerial image / Aquatic image / Retro-reflection / AIRR / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 27, 3DMT2026-49, pp. 21-24, Sept. 2026. |
| Paper # |
3DMT2026-49 |
| Date of Issue |
2026-09-17 (3DMT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
3DMT |
| Conference Date |
2026-09-24 - 2026-09-25 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Nagasaki University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
3DMT |
| Conference Code |
2026-09-3DMT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Distortion-Free Underwater Imaging in a Spherical Water Tank Using a Plane-Symmetric Imaging Optical System |
| Sub Title (in English) |
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| Keyword(1) |
Aerial image |
| Keyword(2) |
Aquatic image |
| Keyword(3) |
Retro-reflection |
| Keyword(4) |
AIRR |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Keigo Fukuda |
| 1st Author's Affiliation |
Nagaoka University of Technology (NUT) |
| 2nd Author's Name |
Ryotaro Umemoto |
| 2nd Author's Affiliation |
Nagaoka University of Technology (NUT) |
| 3rd Author's Name |
Kengo Fujii |
| 3rd Author's Affiliation |
Nagaoka University of Technology (NUT) |
| 4th Author's Name |
Yendo Tomohiro |
| 4th Author's Affiliation |
Tokyo City University (TCU) |
| 5th Author's Name |
Masahiro Iwahashi |
| 5th Author's Affiliation |
Nagaoka University of Technology (NUT) |
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| Speaker |
Author-1 |
| Date Time |
2026-09-24 13:50:00 |
| Presentation Time |
20 minutes |
| Registration for |
3DMT |
| Paper # |
3DMT2026-49 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.27 |
| Page |
pp.21-24 |
| #Pages |
4 |
| Date of Issue |
2026-09-17 (3DMT) |