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Development of a 3D pose estimation system using deep learning to support practical learning

Research Project

Project/Area Number 21K12175
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 62030:Learning support system-related
Research InstitutionThe University of Tokushima

Principal Investigator

SHISHIBORI Masami  徳島大学, 大学院社会産業理工学研究部(理工学域), 教授 (50274262)

Co-Investigator(Kenkyū-buntansha) 光原 弘幸  徳島大学, 大学院社会産業理工学研究部(理工学域), 教授 (90363134)
大野 将樹  徳島大学, 大学院社会産業理工学研究部(理工学域), 講師 (90433739)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords学習支援 / 拡張現実 / 深層学習 / 姿勢推定 / 3D
Outline of Research at the Start

2D被写体を3Dモデルに変換するためには,高額な3Dボディスキャナーが必要になる.本研究では,特殊な機材を必要とせずに,通常の環境で撮影された画像や映像に写っている2D被写体を3Dモデルに変換するシステムを開発する.近年,深層学習モデルを用いて3Dモデルを生成する技術が海外において活発に研究されており,学習済みの予測モデルも公開されている.しかし,外国人の身体データを学習しているため,外国人と体型差がある日本人に適用すると精度が低下する.そこで本研究では,既存の予測モデルに対して,学習データと被写体との体型差により起因する精度低下を緩和可能なシステムを開発することを目的とする.

Outline of Final Research Achievements

The technology for acquiring human pose is used in a wide range of fields such as motion analysis, AR, and VR. 2D pose estimation is to identify the 2D points of a person’s joints in an image. Currently, 2D pose estimation is showing high performance. For this reason, 3D pose estimation has been widely studied using the results of 2D pose estimation as input. 3D pose estimation acquires depth information at joint points. The whole body or a part of the body leans forward or backward more than actual. In this study, we consider the fact that distances between joints of the same person is constant. By using this feature, this method improves the accuracy of the 3D pose estimation. In order to evaluate this method, we compared the 3D joint point positions estimated from the 2D joint point positions in the Human3.6M dataset. From the experimental result, it has been found that the more correctly distances between joints in estimated, the smaller the error tends to be.

Academic Significance and Societal Importance of the Research Achievements

実技を伴う教科では,実際の姿勢や動作,手技の動きなどを見せるために,事前に撮影した画像や映像をタブレット端末に配信し,実技教育を実践する教育現場が増えている.画像や映像を利用した実技教育は効率的に学習できるが,画像や映像を撮影した一方向からの視点でしか被写体を把握できず,身体に隠れた部分や視点を変更した内容が確認できないといった問題点がある.本研究成果を用いると,被写体の骨格情報を3次元で立体的に表示できるので,学習者は様々な視点から被写体を確認することで,学習効果が向上することが期待できる.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (17 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (11 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Shelter GO: multiplayer location-based game to promote knowing shelters for emergency evacuation2023

    • Author(s)
      Mitsuhara Hiroyuki、Shishibori Masami
    • Journal Title

      Research and Practice in Technology Enhanced Learning

      Volume: 19 Pages: 1-30

    • DOI

      10.58459/rptel.2024.19009

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Location-Based Game for Thought-Provoking Evacuation Training2023

    • Author(s)
      Mitsuhara Hiroyuki、Tanimura Chie、Nemoto Junko、Shishibori Masami
    • Journal Title

      Multimodal Technologies and Interaction

      Volume: 7 Issue: 6 Pages: 1-27

    • DOI

      10.3390/mti7060059

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tsunami Evacuation Drill System Focusing on Mobile Devices2022

    • Author(s)
      Mitsuhara Hiroyuki、Shishibori Masami
    • Journal Title

      International Journal of Interactive Mobile Technologies (iJIM)

      Volume: 16 Issue: 06 Pages: 4-20

    • DOI

      10.3991/ijim.v16i06.23419

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Mobile Application for Earthquake Education Targeting Foreigners Intending to Visit Japan2022

    • Author(s)
      Liu Meiqin、Mitsuhara Hiroyuki、Shishibori Masami
    • Journal Title

      International Journal of Interactive Mobile Technologies (iJIM)

      Volume: 16 Issue: 24 Pages: 170-190

    • DOI

      10.3991/ijim.v16i24.35479

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interactive Digital Signage System Enabling Viewers to Answer Quizzes by Body Actions2021

    • Author(s)
      Hiroyuki Mitsuhara and Masami Shishibori
    • Journal Title

      Information and Technology in Education and Learning

      Volume: 1 Issue: 1 Pages: Dev-p001-Dev-p001

    • DOI

      10.12937/itel.1.1.Dev.p001

    • NAID

      130008068516

    • ISSN
      2436-1712
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Non-Player Characters for Evacuation Training in Metaverse: Preliminary Experiment2023

    • Author(s)
      Kaito Ohe, Yusaku Ichino, Hiroyuki Mitsuhara and Masami Shishibori
    • Organizer
      Proceedings of the 31st International Conference on Computers in Education
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of spectral features for selective detection of peripheral nerves by support vector machine-based Raman spectral analysis2023

    • Author(s)
      Koshiro Hori, Takeo Minamikawa, Yoshiki Terao, Masami Shishibori and Takeshi Yasui
    • Organizer
      Proceedings of SPIE
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 細胞診断システムにおける円形度に着目した領域分割の改善2023

    • Author(s)
      巨島 弘基, 谷口 拓也, 河原田 理愛, 尾矢 剛志, 常山 幸一, 大野 将樹, 獅々堀 正幹
    • Organizer
      2023年電気学会 電子・情報・システム部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Immersive Function for Allocating Disaster Situations for a VR-based Evacuation Training System2022

    • Author(s)
      Kaito Oe, Itsuki Tanioka, Hiroyuki Mitsuhara and Masami Shishibori
    • Organizer
      Proceedings of the 30th International Conference on Computers in Education
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prototype System of Evacuation Training in Metaverse2022

    • Author(s)
      Kaito Oe, Itsuki Tanioka, Hiroyuki Mitsuhara and Masami Shishibori
    • Organizer
      Proceedings of the 30th International Conference on Computers in Education
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Shelter GO: Multiplayer Location-based Game for Learning Evacuation2022

    • Author(s)
      Hiroyuki Mitsuhara and Masami Shishibori
    • Organizer
      Proceedings of the 30th International Conference on Computers in Education
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Observing Evacuation Behaviours of Surprised Participants in Virtual Reality Earthquake Simulator2021

    • Author(s)
      Hiroyuki Mitsuhara, TANIOKA Itsuki and Masami Shishibori
    • Organizer
      Proc. of the 29th International Conference on Computers in Education
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Expressing Disaster Situations for Evacuation Training Using Markerless Augmented Reality2021

    • Author(s)
      Hiroyuki Mitsuhara, Chie Tanimura, Junko Nemoto and Masami Shishibori
    • Organizer
      Proc. of 25th International Conference on Knowledge-Based and Intelligent Information & Engineering Systems
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of a 3D visualization system for the cerebral aneurysm coil embolization2021

    • Author(s)
      Harumi Kadota, Shoma Fujisawa, Masaki Oono, Ryoma Morigaki, Nobuaki Yamamoto, Yasuhisa Kanematsu, Manabu Ishihara and Masami Shishibori
    • Organizer
      Proc. of Fifteenth International Conference on Quality Control by Artificial Vision
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] A reconstruction method of 3D face model from front and side 2D face images using deep learning model2021

    • Author(s)
      Ryota Nishio, Masaki Oono, Takaharu Goto, Takahiro Kishimoto and Masami Shishibori
    • Organizer
      Proc. of Fifteenth International Conference on Quality Control by Artificial Vision
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 胸腹水濾過濃縮専用装置 M-CART への人工知能応用の可能性2021

    • Author(s)
      獅々堀正幹,大野将樹,泓田正雄,寺田賢治,緒方良輔,岡久稔也
    • Organizer
      第59回日本人工臓器学会大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Book] -Pythonでデータサイエンス- AI・機械学習のためのデータ前処理 [実践編]2021

    • Author(s)
      北 研二、松本 和幸、吉田 稔、獅々堀 正幹、大野 将樹
    • Total Pages
      184
    • Publisher
      科学情報出版
    • ISBN
      9784910558011
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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