• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Real-time Measurement of Large Structures Using Spherical Camera and Ring Laser

Research Project

Project/Area Number 22K18826
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 22:Civil engineering and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Yamashita Atsushi  東京大学, 大学院新領域創成科学研究科, 教授 (30334957)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords形状計測 / 光切断法 / 広視野カメラ / 全周レーザ / 3次元計測 / 大型構造物計測
Outline of Research at the Start

トンネルや建築物など大型構造物の施工・維持管理において,その内部形状の3次元測量データは必要不可欠である.本研究では,360度の視野を有する全天球カメラと広範囲にレーザ光を照射可能な全周レーザを用いて,トンネルや建築物などの大型構造物の内部形状を広範囲・高速・高密度に3次元計測する新規な手法を提案する.

Outline of Final Research Achievements

It is difficult to perform 3D measurement of large infrastructures with high density at high-speed using existing measurement systems such as total station theodolite or LiDAR. These measurement systems require an operation to measure the shift in position and orientation of the measurement systems each time when the measurement systems change their positions and orientation.
This study proposed a new 3D measurement system of large infrastructures based on the structured light method using ring laser and wide field-of-view camera with high accuracy and high density. This study also proposed a registration method of multiple 3D measurement results at different locations using image processing technique. Effectiveness of the proposed method was verified through experiments.

Academic Significance and Societal Importance of the Research Achievements

本研究では,大型構造物を対象とし,全天球カメラと全周レーザを用いた光切断法を新規に構築することによって広範囲計測・高精度計測を実現すると同時に,画像処理技術によって追加の機器を用いずに複数断面の計測結果を自動統合する手法を新規に構築した.本研究は,大型構造物の内部形状を広範囲・高精度・高密度に測量するという斬新な枠組みを新規に提案するものであり,学術的な新規性と理論的な発展が大きい.加えて,施工・維持管理時の3次元測量データ生成・活用・管理の効率化といった社会的な成果と,これまでにない新理論を提案する点において挑戦的研究としての学術的な進展の両者を兼ね備えた内容である.

Report

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

    (3 results)

All 2023

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results)

  • [Journal Article] Position and Direction Measurement of Rock Bolt Hole Using Cross Line Laser and Camera2023

    • Author(s)
      HAYAMIZU Toko、IGAUE Takuya、IKURA Mikihiro、HIGUCHI Hiroshi、KASAHARA Jun Younes LOUHI、ITO Satoshi、TANIGUCHI Nobuhiro、MORINO Hiroyuki、YOSHIDA Kenichi、ASAMA Hajime、YAMASHITA Atsushi
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 89 Issue: 4 Pages: 328-335

    • DOI

      10.2493/jjspe.89.328

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2023-04-05
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cooperative 3D tunnel measurement based on 2D-3D registration of omnidirectional laser light2023

    • Author(s)
      Igaue Takuya、Hayamizu Toko、Higuchi Hiroshi、Ikura Mikihiro、Yoshida Kenichi、Yamanaka Satoshi、Yamaguchi Takashi、Asama Hajime、Yamashita Atsushi
    • Journal Title

      Journal of Field Robotics

      Volume: 40 Issue: 8 Pages: 2042-2056

    • DOI

      10.1002/rob.22241

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pose Adjustment Considering Linear Cross-Section Continuity of Line-Structured Light-Based 3D Tunnel Measurements2023

    • Author(s)
      Igaue Takuya、Hayamizu Toko、Yoshida Kenichi、Yamanaka Satoshi、Asama Hajime、Yamashita Atsushi
    • Journal Title

      Proceedings of the 2023 IEEE/SICE International Symposium on System Integration (SII2023)

      Volume: - Pages: 51-57

    • DOI

      10.1109/sii55687.2023.10039303

    • Related Report
      2022 Research-status Report
    • Peer Reviewed

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi