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Digital Hand Model Reconstructing the Morphology and Posture

Research Project

Project/Area Number 15570200
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Anthropology
Research InstitutionNATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY

Principal Investigator

KOUCHI Makiko  National Institute of Advanced Industrial Science and Technology, Digital Human Research Center, Senior Researcher, デジタルヒューマン研究センター, 主任研究員 (80126052)

Co-Investigator(Kenkyū-buntansha) MOCHIMARU Masaaki  National Institute of Advanced Industrial Science and Technology, Digital Human Research Center, Deputy Director, デジタルヒューマン研究センター, 副センター長 (90358169)
MIYATA Natsuki  National Institute of Advanced Industrial Science and Technology, Digital Human Research Center, Researcher, デジタルヒューマン研究センター, 研究員 (90344225)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,800,000)
Fiscal Year 2004: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2003: ¥2,800,000 (Direct Cost: ¥2,800,000)
KeywordsHand / Computer manikin / Anthropometry / Motion / Posture / Skeletal structure / MRI / Skin movement artifact / skin movement artifact
Research Abstract

The purposes of the present study were (1)to obtain representative 3D hand forms covering the variations in the Japanese hand morphology, and (2)to reconstruct grasping postures for a digital hand model. The following results were obtained.
1.A method was proposed to obtain the rotation axis of finger joints from MRI images taken in 3 different postures. Bone surfaces were extracted, and the rotation axis was calculated from the relative position of 2 adjacent bones. It was found that rotation axes of metacarpo-pharangeal and proximal and distal inter-phalangeal joints were not parallel, and that the direction of the rotation axis relative to the proximal bone changes according to the flexion angle.
2.A method was proposed to obtain an individual link structure modeled from optical motion capture data. Using the link model, postures to grasp 5 cylinders of different diameter were captured. The captured data was utilized to generate postures required to grasp cylinders of arbitrary diameter between the captured ones. When a posture is reconstructed, the strategy for grasping a cylinder was taken into consideration.
3.A generic hand model was created from CT images of a male subject taken in 3 different postures. The generic model consists of the surface polygon models of the skin and bones, link structure, and functional rotation centers.
4.From the hand dimensions measured on 100 male and female subjects, hand dimensions of 9 members of a boundary family were calculated. Shape models of the 9 virtual hands were created by deforming the generic model so that the dimensions of the generic model become identical to those of each of virtual forms.
5.Bone lengths were measured from X-ray films obtained in a previous study, and analyzed for the allometry of link lengths

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (10 results)

All 2005 2004 Other

All Journal Article (10 results)

  • [Journal Article] Analysis of skin movement with respect to flexional bone motion using MR images of a hand2005

    • Author(s)
      Jae Hun Ryu, Natsuki Miyata, Makiko Kouchi, Masaaki Mochimaru
    • Journal Title

      Journal of Biomechnics (In press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] An analysis of hand measurements for obtaining representative Japanese hand models2005

    • Author(s)
      Makiko Kouchi, Natsuki Miyata, Masaaki Mochimaru
    • Journal Title

      Proceedings of SAE Digital Human Modeling Conference 2005 (In press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hand link modeling and motion generation from motion capture data based on 3D joint kinematics2005

    • Author(s)
      Miyata, N., M.Kouchi, M.Mochimaru, K.Kawachi, T.Kurihara
    • Journal Title

      Proceedings of SAE Digital Human Modeling Conference 2005 (In press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] An analysis of hand measurements for obtaining representative Japanese hand models2005

    • Author(s)
      Makiko Kouchi, Natsuki Miyata, Masaaki Mochimaru
    • Journal Title

      Proceedings of SAE Digital Human Modeling Conference 2005 2005-01-2734

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hand link modeling and motion generation from motion capture data based on 3D joint kinematics2005

    • Author(s)
      Natsuki Miyata, Makiko Kouchi, Masaaki Mochimaru, Kztsuaki Kawachi, Tsuneya Kurihara
    • Journal Title

      Proceedings of SAE Digital Human Modeling Conference 2005 2005-01-2687

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] An analysis of hand measurements for obtaining representative Japanese hand models2005

    • Author(s)
      Makiko Kouchi, Natsuki Miyata, Masaaki Mochimaru
    • Journal Title

      Proceedings of SAE Digital Human Modeling Conference 2005

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 医用画像を用いた変形可能な手のCGモデル2004

    • Author(s)
      栗原恒弥, 宮田なつき
    • Journal Title

      画像電子学会誌 33,4-B

      Pages: 539-546

    • NAID

      10013587806

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Deformable hand models from medical images (In Japanese)

    • Author(s)
      Tsuneya Kurihara, Natsuki Miyata
    • Journal Title

      The Journal of the Institute of Image Electronics Engineering of Japan

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Analysis of skin movement with respect to flexional bone motion using MR images of a hand

    • Author(s)
      Jae Hun Ryu, Natsuki Miyata, Makiko Kouchi, Masaaki Mochimaru
    • Journal Title

      Journal of Biomechnics (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Analysis of skin movement with respect to flexional bone motion using MR images of a hand

    • Author(s)
      Jae Hun Ryu, Natsuki Miyata, Makiko Kouchi, Masaaki Mochimaru
    • Journal Title

      Journal of Biomechnics (未定)

    • Related Report
      2004 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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