| Paper Abstract and Keywords |
| Presentation |
2025-07-24 14:40
Noise reduction for incoherent digital holography with annular polarizer
Mao Takahashi, Teruyoshi Nobukawa (NHK), Ryohei Hokari, Genki Kuwano, Kazuma Kurihara (AIST), Kei Hagiwara, Tetsuhiko Muroi (NHK) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Incoherent digital holography (IDH) enables three-dimensional imaging using spatially incoherent light sources such as sunlight or light-emitting diodes. However, the low contrast of holograms in IDH is easy to suffer from shot noise, resulting in degraded image quality of the reconstructed images. To address this issue, we have developed an annular polarizer that can reduce the influence of shot noise. In this study, we investigate the effect of the transmittance and extinction ratio of the polarizing area, as well as the phase shift between the polarizing and non-polarizing areas, on noise reduction by simulation. The numerical results show that the contrast ratio of the reconstructed images improved with decreasing transmittance and phase shift, but did not depend on extinction ratio. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Incoherent digital holography / Three dimensional imaging / Annular polarizer / / / / / |
| Reference Info. |
ITE Tech. Rep. |
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| Download PDF |
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| Conference Information |
| Committee |
SMC |
| Conference Date |
2025-07-24 - 2025-07-25 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
spatial media conference 2025 |
| Paper Information |
| Registration To |
SMC |
| Conference Code |
2025-07-SMC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Noise reduction for incoherent digital holography with annular polarizer |
| Sub Title (in English) |
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| Keyword(1) |
Incoherent digital holography |
| Keyword(2) |
Three dimensional imaging |
| Keyword(3) |
Annular polarizer |
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| 1st Author's Name |
Mao Takahashi |
| 1st Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 2nd Author's Name |
Teruyoshi Nobukawa |
| 2nd Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 3rd Author's Name |
Ryohei Hokari |
| 3rd Author's Affiliation |
National Institute of Advanced Industrial Science and Technology (AIST) |
| 4th Author's Name |
Genki Kuwano |
| 4th Author's Affiliation |
National Institute of Advanced Industrial Science and Technology (AIST) |
| 5th Author's Name |
Kazuma Kurihara |
| 5th Author's Affiliation |
National Institute of Advanced Industrial Science and Technology (AIST) |
| 6th Author's Name |
Kei Hagiwara |
| 6th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 7th Author's Name |
Tetsuhiko Muroi |
| 7th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
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| Speaker |
Author-1 |
| Date Time |
2025-07-24 14:40:00 |
| Presentation Time |
15 minutes |
| Registration for |
SMC |
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vol. |
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