| Paper Abstract and Keywords |
| Presentation |
2025-09-18 14:20
Efficient Calculation of Wide Field-of-View CGH Based on Orthographic Ray-Wavefront Conversion
Aya Kudo (Science Tokyo), Ryo Higashida (NHK), Saori Takeyama, Masahiro Yamaguchi (Science Tokyo) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In this study, we develop a new calculation method based on orthographic ray–wavefront conversion for wide field-of-view computer-generated holograms (CGHs), Since wide field-of-view CGHs with conventional orthographic ray–wavefront conversion generate artifacts at the edges of the field of view, our method temporarily adds a margin where the artefacts occur and then removes this margin in the final CGH to suppress the artifacts. Our method can calculate a CGH by the same number of wavefront propagation calculations as the number of sampling points on a hologram plane, so it realizes efficient calculation of wide field-of-view CGHs while maintaining image quality. Moreover, based on the proposed method, a CGH with a resolution of 128K × 128K pixels was computed. In an optical reconstruction experiment, we successfully demonstrate a 3D image with approximately 132 cm × 66 cm at a distance of 100 cm from the CGH plane, using a CGH of 6.5 cm square. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CGH / Wide field-of-view / Orthographic ray-wavefront conversion / Computational efficiency / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 49, pp. 29-32, Sept. 2025. |
| Paper # |
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| Date of Issue |
2025-09-11 (IDY, AIT, 3DMT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
OSJ-HODIC AIT 3DMT IDY IEICE-EID IEE-OQD SID-JC |
| Conference Date |
2025-09-18 - 2025-09-18 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
OSJ-HODIC |
| Conference Code |
2025-09-HODIC-AIT-3DMT-IDY-EID-OQD-JC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Efficient Calculation of Wide Field-of-View CGH Based on Orthographic Ray-Wavefront Conversion |
| Sub Title (in English) |
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| Keyword(1) |
CGH |
| Keyword(2) |
Wide field-of-view |
| Keyword(3) |
Orthographic ray-wavefront conversion |
| Keyword(4) |
Computational efficiency |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Aya Kudo |
| 1st Author's Affiliation |
Institute of Science Tokyo (Science Tokyo) |
| 2nd Author's Name |
Ryo Higashida |
| 2nd Author's Affiliation |
NHK Science & Technology Research Laboratories (NHK) |
| 3rd Author's Name |
Saori Takeyama |
| 3rd Author's Affiliation |
Institute of Science Tokyo (Science Tokyo) |
| 4th Author's Name |
Masahiro Yamaguchi |
| 4th Author's Affiliation |
Institute of Science Tokyo (Science Tokyo) |
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| Speaker |
Author-1 |
| Date Time |
2025-09-18 14:20:00 |
| Presentation Time |
20 minutes |
| Registration for |
OSJ-HODIC |
| Paper # |
IDY2025-47, AIT2025-189, 3DMT2025-32 |
| Volume (vol) |
vol.49 |
| Number (no) |
no.26 |
| Page |
pp.29-32 |
| #Pages |
4 |
| Date of Issue |
2025-09-11 (IDY, AIT, 3DMT) |