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Intelligent Interface for 3-D Shape Manipulation Using Various-Shaped Elastic Objects as Input Tools

Research Project

Project/Area Number 10555079
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section展開研究
Research Field Intelligent mechanics/Mechanical systems
Research InstitutionThe University of Tokyo

Principal Investigator

MURAKAMI Tamotsu  The University of Tokyo, Graduate School of Engineering, Associate Professor, 大学院・工学系研究科, 助教授 (20212251)

Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 2000: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1999: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1998: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywords3-D geometric operation / Direct and intuitive input tool / Haptic interface / Operation integration / Human interface / Computer-aided design / Virtual reality / Neural network / 形状モデリング / コンピュータ・グラフィックス / 3次元形状測定
Research Abstract

The purpose of this research is to propose a passive haptic interface for manipulating 3-D geometric model in CAD and CG directly and intuitively by bending and twisting real elastic objects as input tools by bare hands. The results are summarized as follows.
(1) A passive haptic input tool made of elastic and conductive foam rubber lump to measure 3-D deformation on the tool by electrical resistance change is proposed.
(2) 3-D deformation measurement and calculation method applicable to various-shaped foam rubber input tool is developed using neural network learning.
(3) Free-form deformation technique, originally developed for parallelepiped shape, is extended to various shape by introducing a simplified control volume which approximates the object shape with a set of parallelepiped control volumes.
(4) To measure and calculate 3-D deformation on various shaped foam rubber input tool with a limited learning ability of neural network, the number and allocation of electrical terminals embodied to foam rubber lump must be minimized and optimized. By identifying input layer units, which correspond to electrical terminals, of a neural network with less importance during learning process and removing them, a method of minimizing and optimizing the number and allocation of electrical terminals is developed.
(5) An input tool consisting of foam rubber block, electromagnetic six-degree-of-freedom tracker, buttons and slide volumes are proposed to integrate multiple 3-D geometric operations, such as deformation, position/orientation control and parameter controls, for 3-D CAD and CG with a single tool.
(6) By quantitatively comparing the proposed tool and conventional mouse-keyboard interface for necessary time and number of actions for specific task, the effectiveness and possibility of our approach are confirmed.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] Tamotsu MURAKAMI and Naomasa NAKAJIMA: "DO-IT : Deformable Object as Input Tool for 3-D Geometric Operation"Computer-Aided Design. 32・1. 5-16 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 村上存,石丸温,ファンシャオフェイ,中島尚正: "可変形物体を入力装置とする3次元形状操作インタフェース"日本バーチャルリアリティ学会第3回大会論文集. 177-180 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 村上存,石丸温,ファンシャオフェイ,中島尚正: "学習機能を有する直接・直観的3次元形状操作インタフェース"日本機械学会第8回設計工学・システム部門講演会講演論文集. 〔No.98-32〕. 499-502 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 村上存,石丸温,湯浅修二,中島尚正: "多様な立体形状の弾性体を入力装置とする形状操作インタフェース"日本機械学会2000年度年次大会講演論文集,. Vol.II. 487-488 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 村上存,石丸温,湯浅修二,中島尚正: "多様な形状の弾性体を入力装置とする直観的3-D形状操作"日本バーチャルリアリティ学会第5回大会論文集. 55-58 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 村上存,石丸温,湯浅修二,中島尚正: "多様な形状の弾性体を入力装置とする直観的3-D形状操作"日本機械学会第10回設計工学・システム部門講演会講演論文集. 211-214 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tamotsu MURAKAMI, et al.: "DO-IT : Deformable Object as Input Tool for 3-D Geometric Operation"Computer-Aided Design. Vol.32, No.1. 5-16 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tamotsu MURAKAMI, et al.: "DO-IT : Deformable Object as Input Tool for 3-D Geometric Operation"Proc.of the 3rd VRSJ Annual Conference. (in Japanese). 177-180 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tamotsu MURAKAMI, et al.: "DO-IT : Deformable Object as Input Tool for 3-D Geometric Operation"Proc.of the JSME Design & Systems Conference '98. (in Japanese). 499-502 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tamotsu MURAKAMI, et al.: "3-D Geometric Operation Interface Using Various-Shaped Elastic Objects as Input Tools"Proc.of JSME Annual Meeting 2000. Vol.II (in Japanese). 487-488 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tamotsu MURAKAMI, et al.: "Intuitive 3-D Geometric Operation Using Various-Shaped Elastic Objects as Input Tool"Proc.of the VRSJ 5th Annual Conference. (in Japanese). 55-58 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tamotsu MURAKAMI, et al.: "Intuitive 3-D Geometric Operation Using Various-Shaped Elastic Objects as Input Tool"Proc.of the JSME 10th Design and Systems Conference. (in Japanese). 211-214 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 村上存,石丸温,湯浅修二,中島尚正: "多様な立体形状の弾性体を入力装置とする形状操作インタフェース"日本機械学会2000年度年次大会講演論文集,Vol,II. 487-488 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 村上存,石丸温,湯浅修二,中島尚正: "多様な形状の弾性体を入力装置とする直観的3-D形状操作"日本バーチャルリアリティ学会第5回大会論文集. 55-58 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 村上存,石丸温,湯浅修二,中島尚正: "多様な形状の弾性体を入力装置とする直観的3-D形状操作"日本機械学会第10回設計工学・システム部門講演会講演論文集. 211-214 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Tamotsu MURAKAMI and Naomasa NAKAJIMA: "DO-IT : Deformable Object as Input Tool for 3-D Geometric Operation"Computer-Aided Design. 32・1. 5-16 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 村上存,石丸温,ファンシャオフェイ,中島尚正: "可変形物体を入力装置とする3次元形状操作インタフェース" 日本バーチャルリアリティ学会第3回大会論文集. 177-180 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 村上存,石丸温,ファンシャオフェイ,中島尚正: "学習機能を有する直接・直観的3次元形状操作インタフェース" 日本機械学会第8回設計工学・システム部門講演会講演論文集〔No.98-32〕. 499-502 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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