2023 Fiscal Year Final Research Report
An alignment-free multispectral polarization imaging method using random photonic crystals
| Project/Area Number |
21K11952
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 61010:Perceptual information processing-related
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| Research Institution | Utsunomiya University |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 画像処理 / 分光イメージング / 偏光イメージング / フィルタアレイ / 圧縮センシング / フォトニック結晶 |
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| Outline of Final Research Achievements |
In this study, we develop a photonic crystal filter with a random structure and establish an imaging method that can capture spectral, polarization, and RGB images with a single camera and a single exposure by simply mounting the filter on a monochrome imager without alignment. The proposed filter works as a specific multispectral polarization filter array due to its randomness no matter how the filter is moved or rotated on the sensor plane, so that the desired camera can be completed by simply mounting the filter without alignment. In this research period, both the filter pattern and the image restoration method were newly developed, and it was confirmed that high-quality spectropolarization images can be restored from a mosaic image.
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| Free Research Field |
画像情報光学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は，アライメントフリーの概念・ナノマテリアル・情報処理を相補的に融合することで分光偏光RGBの同時イメージングを達成することに本研究の独自性がある．本研究の成果は，フィルタアレイの枠を超えた新たなイメージング体系を学術的に開拓することに創造性があることに加え，小型・安価・製造容易な分光偏光RGBカメラの実現可能性を同時に示すことで，自動運転や小型内視鏡への貢献が期待できる点に社会的創造性がある．
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