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Creation and application of dynamic phosphorescent markers by high-speed imaging of additive-free phosphorescent phenomena

Research Project

Project/Area Number 20H04204
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 61010:Perceptual information processing-related
Research InstitutionTokyo University of Science (2023)
The University of Tokyo (2020-2022)

Principal Investigator

Hayakawa Tomohiko  東京理科大学, 研究推進機構総合研究院, 准教授 (10747843)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywordsトラッキング / 蓄光 / 動的マーカー / 高速撮像 / サーモカメラ / ガルバノミラー / 動的蓄光マーカー / 動的サーモマーカー / バイオイメージング / 光軸制御 / 室温りん光 / 無添加蓄光現象 / 高速ビジョン / 蓄光現象 / 紫外光レーザー / 可視光レーザー / 燐光
Outline of Research at the Start

従来のマーカーは外的な特徴量や事前の色素塗布を前提としており,トラッキング対象や条件が制約されていた.そこで,本研究では対象に特徴点が全く存在しない状況でも動的にマーカーを発現させる方法として,無添加で紙や布,構造物等への紫外線照射時に生じる蓄光現象を利用し,高精度かつ高速な動的蓄光マーカーを実現する.そのため,まず様々な素材に対する蓄光特性をモデリングすることでマーカー特性を最適化し,その後,特徴量を持たない対象に動的蓄光マーカーを発現させ,トラッキングを実施する.本研究は,様々な分野で応用される基盤的な光学トラッキング技術と位置付けられ,コスト削減による省エネルギー社会への貢献を目指す.

Outline of Final Research Achievements

Conventional markers are based on the assumption of feature values and prior dye application, and the tracking target and conditions are restricted. In this study, we developed a high-precision and high-speed dynamic phosphorescent marker that utilizes the phosphorescence phenomenon that occurs when irradiated with ultraviolet light as a method to dynamically generate a marker even when there are no feature points on the object. In addition to the development of related optical-axis control technology, we also succeeded in tracking a stuffed sparrow and visualizing powder trajectories, establishing a minimally invasive and low-cost real-time tracking method without prior preparation for marker use. Furthermore, we developed a dynamic thermal marker using laser heating and a thermo-camera, which can generate up to 33 markers simultaneously and can also generate markers with arbitrary shapes and information coded on them.

Translated with DeepL.com (free version)

Academic Significance and Societal Importance of the Research Achievements

本手法は対象に紫外線光を照射することで生じる蓄光現象を用い,高速ビジョン・高速トラッキングを用いてミリ秒単位のトラッキングを可能にした全く新しい技術であり,学術的独自性が高い.また,有機物に活用可能なことから,幅広い分野での利用が見込まれる.更に,本トラッキング手法が蓄光だけでなく,熱にも利用可能であることを確認したため,応用可能性が広がった.これまでのマーカー取付の事前準備や特徴点を必要とした課題を解決しただけでなく,高速イメージングを活用することで,ミリ秒単位のマーカーを任意に生成することが可能になり,様々な分野で応用される基盤的な光学トラッキング技術だと考えられる.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021 2020 Other

All Journal Article (7 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (12 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Tunnel Lining Surface Monitoring System Deployable at Maximum Vehicle Speed of 100 km/h Using View Angle Compensation Based on Self-Localization Using White Line Recognition2022

    • Author(s)
      Tomohiko Hayakawa, Yushi Moko, Kenta Morishita, Yuka Hiruma, Masatoshi Ishikawa
    • Journal Title

      Journal of Robotics and Mechatronics

      Volume: 34 Issue: 5 Pages: 997-1010

    • DOI

      10.20965/jrm.2022.p0997

    • ISSN
      0915-3942, 1883-8049
    • Year and Date
      2022-10-20
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 時速100km走行での覆工コンクリート高解像度変状検出手法2022

    • Author(s)
      早川智彦, 東晋一郎
    • Journal Title

      建設機械

      Volume: Vol.58 Pages: 34-38

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Angle of View Switching Method at High-Speed Using Motion Blur Compensation for Infrastructure Inspection2022

    • Author(s)
      Yuriko Ezaki, Yushi Moko, Tomohiko Hayakawa, and Masatoshi Ishikawa
    • Journal Title

      Journal of Robotics and Mechatronics

      Volume: Vol.34 Pages: 985-996

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Hybrid surface measuring system for motion-blur compensation and focus adjustment using a deformable mirror2022

    • Author(s)
      Kenichi Murakami, Tomohiko Hayakawa, Masatoshi Ishikawa
    • Journal Title

      Applied Optics

      Volume: Vol.61 Issue: 2 Pages: 429-438

    • DOI

      10.1364/ao.442987

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 【大臣賞】時速100km走行での覆工コンクリート高解像度変状検出手法2021

    • Author(s)
      早川智彦, 望戸雄史, 石川正俊, 大西偉允, 亀岡弘之
    • Journal Title

      土木施工

      Volume: Vol.62 Pages: 146-146

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 時速100km走行でのトンネル覆工コンクリート高解像度変状検出手法2021

    • Author(s)
      早川智彦, 石川正俊, 亀岡弘之
    • Journal Title

      建設機械施工

      Volume: Vol.73 Pages: 19-23

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Optimal Material Search for Infrared Markers under Non-Heating and Heating Conditions2021

    • Author(s)
      Yuki Kubota, Yushan Ke, Tomohiko Hayakawa, Yushi Moko, Masatoshi Ishikawa
    • Journal Title

      Sensors

      Volume: Vol.21 Issue: 19 Pages: 1-17

    • DOI

      10.3390/s21196527

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Label-free position tracking in stuffed sparrow using phosphorescence2024

    • Author(s)
      Tomohiko Hayakawak, Yuka Hiruma, Ke Yushan, Masatoshi Ishikawa
    • Organizer
      SPIE Photonics West BiOS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Active thermal marker using thermal images of heated areas with visible semiconductor laser2023

    • Author(s)
      Tomohiko Hayakawa, Yuka Hiruma, Yushan Ke, Masatoshi Ishikawa
    • Organizer
      The 10th edition of the International Conference on Optical and Photonic Engineering
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical axis control methods for infrastructure inspection2023

    • Author(s)
      Tomohiko Hayakawa
    • Organizer
      2nd Intl. Conference Advances in 3OM
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Silk-printed retroreflective markers for infrastructure-maintenance vehicles in curved tunnels2023

    • Author(s)
      Yushan Ke, Yushi Moko, Yuka Hiruma, Tomohiko Hayakawa, Elgueta Scarlet, Masatoshi Ishikawa
    • Organizer
      SPIE Smart Structures/Nondestructive Evaluation 2023 (NDE 2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Silk-printed retroreflective markers for infrastructure-maintenance vehicles in tunnels2022

    • Author(s)
      Yushan Ke, Yushi Moko, Yuka Hiruma, Tomohiko Hayakawa, and Masatoshi Ishikawa
    • Organizer
      SPIE Smart Structures/Nondestructive Evaluation 2022 (NDE 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] モーションブラー補償による高速撮像技術のインフラ検査への応用2021

    • Author(s)
      早川 智彦
    • Organizer
      デジタルものづくり教育研究センター スマート検査・モニタリングプロジェクト セミナー講演
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] インフラメンテナンスのグッドプラクティス2021

    • Author(s)
      早川 智彦
    • Organizer
      社会インフラテック2021カンファレンスプログラム(第4回インフラメンテナンス大賞の事例紹介)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 半導体可視光レーザーによる加熱箇所の熱画像を利用した動的マーカー生成手法2021

    • Author(s)
      早川智彦,高原慧一,柯毓珊,石川正俊
    • Organizer
      一般社団法人レーザー学会学術講演会第41回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] モーションブラー補償撮像手法を利用した走行型点検車両の照明要件―高速道路のトンネル覆工表面の撮影に向けて―2020

    • Author(s)
      早川智彦,柯毓珊,望戸雄史,石川正俊
    • Organizer
      2020年度 第42回照明学会東京支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ガルバノミラーを用いた撮影角度の高速スイッチング2020

    • Author(s)
      江崎ゆり子,望戸雄志,早川智彦,石川正俊
    • Organizer
      2020年第45回光学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Extension of the Capture Range Under High-Speed Motion Using Galvanometer Mirror2020

    • Author(s)
      Yuriko Ezaki, Yushi Moko, Haruka Ikeda, Tomohiko Hayakawa and Masatoshi Ishikawa
    • Organizer
      2020 IEEE/ASME International Conference on Advanced Intelligent Mechatronics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Motion-blur Compensation System Using a Rotated Acrylic Cube with Visual Feedback2020

    • Author(s)
      Tomohiko Hayakawa, Haruka Nakane and Masatoshi Ishikawa
    • Organizer
      1st Virtual IFAC World Congress (IFAC-V 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] レーザー加温による動的マーカー

    • URL

      https://ishikawa-vision.org/perception/HeatTracking/index-j.html

    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] 処理システム、マーキング方法、当該方法において検出されるマーカー、及びマーキングプログラム2020

    • Inventor(s)
      早川智彦,石川正俊,池田遼
    • Industrial Property Rights Holder
      早川智彦,石川正俊,池田遼
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
    • Overseas

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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