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Teleidoscopic Macro Stereo Photography for 3D Shape and Reflectance Measurement of Micro-scale Objects

Research Project

Project/Area Number 22K17914
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 61010:Perceptual information processing-related
Research InstitutionKyoto University (2024)
Kyushu Institute of Technology (2022-2023)

Principal Investigator

Kawahara Ryo  京都大学, 情報学研究科, 講師 (80911263)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2024: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords3次元形状復元 / コンピュテーショナルフォトグラフィ / カメラキャリブレーション / 多視点ステレオ / 偏光 / コンピュータビジョン / 3次元形状復元 / マクロフォトグラフィー
Outline of Research at the Start

広視野な視覚情報処理をミクロな世界で実現することを目指すにあたり,本研究では計算機視覚として接眼レンズを用いず,球面レンズを利用した接写撮影によって,広範囲に合焦した拡大撮影が可能であることに着目する.そしてこれを鏡の利用により多視点へと拡張した,球面レンズ式マクロステレオフォトグラフィーによる微小物体の三次元形状・反射率計測という研究課題に取り組む.本研究課題の遂行は,ミクロな世界での対象表面の形状だけでなく,反射率を得る手法として,精密機器の検査,内視鏡をはじめとした医療への応用,受精卵の解析による生命情報学および養殖業への貢献など,多分野への波及効果が期待される.

Outline of Final Research Achievements

To address the problem of shallow depth of field and the trade-off with magnification and field of view in microscopic imaging, this study constructed a close-up, multi-view imaging system using a spherical lens and mirrors, and analyzed the light field observed in this system. In addition, the research was extended by introducing a polarized light source as active illumination. This allowed for geometric modeling and analysis of polarization reflected by mirrors, shape reconstruction using polarization characteristics observed in microscopic imaging, and estimation of surface reflectance properties such as surface roughness based on mirror-reflected polarization.

Academic Significance and Societal Importance of the Research Achievements

本研究は、従来困難であった微小物体の反射特性を含めた3D計測を、新たな光学系と幾何学的・光学的解析によって実現するものであり、工業製品の外観検査や、昆虫・種子などの非接触観察、さらには医療や生命科学への応用も期待される。さらに偏光を利用することで、従来の計測手法では得られなかった微細構造の復元についても先駆的な開拓を行った。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (17 results)

All 2025 2024 2023 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Int'l Joint Research] ミネソタ大学(米国)

    • Related Report
      2023 Research-status Report
  • [Int'l Joint Research] ミネソタ大学(米国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Polarization as Texture: Microscale 3D Shape from Polarized Light Focus2025

    • Author(s)
      Matsumoto Ren、Okabe Takahiro、Kawahara Ryo
    • Journal Title

      2025 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)

      Volume: 1 Pages: 515-524

    • DOI

      10.1109/wacv61041.2025.00060

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Shape from Mirrored Polarimetric Light Field2025

    • Author(s)
      Nakagawa Shunsuke、Okabe Takahiro、Kawahara Ryo
    • Journal Title

      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)

      Volume: 1 Pages: 790-796

    • DOI

      10.5220/0013389800003912

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Attached Shadow Constrained Shape from Polarization2025

    • Author(s)
      Yoshida Momoka、Kawahara Ryo、Okabe Takahiro
    • Journal Title

      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)

      Volume: 1 Pages: 640-647

    • DOI

      10.5220/0013248700003912

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] One-Shot Polarization-Based Material Classification with Optimal Illumination2025

    • Author(s)
      Kurachi Miho、Kawahara Ryo、Okabe Takahiro
    • Journal Title

      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)

      Volume: 1 Pages: 738-745

    • DOI

      10.5220/0013312700003912

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Manipulating Gloss of Real Objects Under Omnidirectional Lighting2025

    • Author(s)
      Miyoshi Yuki、Kawahara Ryo、Okabe Takahiro
    • Journal Title

      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications(GRAPP)

      Volume: 1 Pages: 429-434

    • DOI

      10.5220/0013386900003912

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Teleidoscopic Imaging System for Microscale 3D Shape Reconstruction2023

    • Author(s)
      Ryo Kawahara, Meng-Yu Jennifer Kuo, Shohei Nobuhara
    • Journal Title

      NIHON GAZO GAKKAISHI (Journal of the Imaging Society of Japan)

      Volume: 62 Issue: 6 Pages: 633-639

    • DOI

      10.11370/isj.62.633

    • ISSN
      1344-4425, 1880-4675
    • Year and Date
      2023-12-10
    • Related Report
      2023 Research-status Report
    • Open Access / Int'l Joint Research
  • [Presentation] Polarization as Texture: Microscale 3D Shape from Polarized Light Focus2025

    • Author(s)
      Matsumoto Ren、Okabe Takahiro、Kawahara Ryo
    • Organizer
      2025 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Shape from Mirrored Polarimetric Light Field2025

    • Author(s)
      Nakagawa Shunsuke、Okabe Takahiro、Kawahara Ryo
    • Organizer
      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Attached Shadow Constrained Shape from Polarization2025

    • Author(s)
      Yoshida Momoka、Kawahara Ryo、Okabe Takahiro
    • Organizer
      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] One-Shot Polarization-Based Material Classification with Optimal Illumination2025

    • Author(s)
      Kurachi Miho、Kawahara Ryo、Okabe Takahiro
    • Organizer
      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISAPP)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Manipulating Gloss of Real Objects Under Omnidirectional Lighting2025

    • Author(s)
      Miyoshi Yuki、Kawahara Ryo、Okabe Takahiro
    • Organizer
      20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications(GRAPP)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 偏光とデフォーカスに基づく不透明微小物体の形状復元2024

    • Author(s)
      松本玲音,岡部孝弘,川原僚
    • Organizer
      情報処理学会 第86 回全国大会
    • Related Report
      2023 Research-status Report
  • [Presentation] 偏光ライトフィールドに基づく曲面鏡の形状復元2023

    • Author(s)
      中川俊輔, 岡部孝弘, 川原僚
    • Organizer
      第234回CVIM研究発表会
    • Related Report
      2023 Research-status Report
  • [Presentation] Teleidoscopic Imaging System for Microscale 3D Shape Reconstruction2023

    • Author(s)
      Ryo Kawahara, Meng-Yu Jennifer Kuo, Shohei Nobuhara
    • Organizer
      画像の認識・理解シンポジウム(MIRU2023)
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] Teleidoscopic Imaging System for Microscale 3D Shape Reconstruction2023

    • Author(s)
      R Kawahara, MYJ Kuo, S Nobuhara
    • Organizer
      Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2023
    • Related Report
      2022 Research-status Report

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Published: 2022-04-19   Modified: 2026-01-16  

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