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Elucidation of the influence of physical characteristics on spatial perception and its application to virtual avatars

Research Project

Project/Area Number 19K22862
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 61:Human informatics and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Hirose Michitaka  東京大学, 先端科学技術研究センター, 名誉教授 (40156716)

Project Period (FY) 2019-06-28 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsバーチャルリアリティ / アバタ / 空間知覚 / 身体性
Outline of Research at the Start

本研究の目的は,バーチャルリアリティで自らが操るアバタの身体特性を変化させる実験系を駆使し,自己の身体特性が空間知覚に与える影響とそのメカニズムを明らかにすることである.この知見を応用し,想定される空間知覚の歪みに応じて身体特性を変化させることで現実と等価な歪みのない空間知覚の下にVRを体験可能にするアバタ表示手法を実現し,現状のバーチャルリアリティでは現実での知覚と比べて空間知覚が大きく歪むという問題を解決を図る.

Outline of Final Research Achievements

As an investigation of the mechanisms by which the avatar's body characteristics affect spatial perception, we undertook a novel examination focusing specifically on the factors of interpupillary distance (IPD) and the rendering style of the avatar and the environment, showing that IPD and body visibility interact to change the size perception of the body and the outside world in the former case, while the latter case we showed that the rendering style has little effect on spatial perception. We also focused on the flexibility of the peri-personal space as a mechanism by which body characteristics change spatial perception, and pointed out for the first time that hand motion mapping and appearance play an important role in the updating of the peri-personal space. We proposed a novel user interface for virtual environments and a method to support remote collaboration based on these findings, and demonstrated their effectiveness.

Academic Significance and Societal Importance of the Research Achievements

学術的には,身体の大きさの認識がIPDに影響されること,レンダリング様式やその組み合わせが空間知覚にはほとんど影響しないこと,身体近傍空間の柔軟な再構成には従来考えられてきたような刺激と身体の空間的な近接性だけでなく手の運動様式や手の外見(正転vs反転)が影響する可能性があること等,人間の身体知覚と空間知覚の相互作用に関する多くの新規知見が報告されたことに意義がある.社会的には,より正確な空間知覚や空間把握のもとに効果的に作業を行えるバーチャルリアリティ向けのインタフェースや遠隔協調作業支援手法が開発され,基礎研究に基づいた実用的な成果が得られた点に意義がある.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] Improving Remote Spatial Understanding by Transmitting Spherical Images via Video Chat Applications2022

    • Author(s)
      Aoyama Kazuma、Maeda Kiyosu、Ueoka Ryoko、Makioka Shigeo、Sakura Nobukazu、Nakashima Kunihiko、Hirose Michitaka、Amemiya Tomohiro
    • Journal Title

      International Journal of Automation Technology

      Volume: 16 Issue: 3 Pages: 286-295

    • DOI

      10.20965/ijat.2022.p0286

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2022-05-05
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Presenting Morphing Shape Illusion: Enhanced Sense of Morphing Virtual Object with Weight Shifting VR Controller by Computational Perception Model2022

    • Author(s)
      Shigeyama Jotaro、Hashimoto Takeru、Yoshida Shigeo、Narumi Takuji、Tanikawa Tomohiro、Hirose Michitaka
    • Journal Title

      IEEE Computer Graphics and Applications

      Volume: - Issue: 4 Pages: 1-10

    • DOI

      10.1109/mcg.2022.3229018

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 旋回ゲインを用いたリダイレクテッドウォーキング2022

    • Author(s)
      水谷純也,松本啓吾,鳴海拓志,廣瀬通孝
    • Journal Title

      日本バーチャルリアリティ学会論文誌

      Volume: 27

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stereoscopic System Maintaining Constant Optical Axes and Interpupillary Distances for Head Rotations2021

    • Author(s)
      雨宮 智浩、青山 一真、廣瀬 通孝
    • Journal Title

      Transactions of the Virtual Reality Society of Japan

      Volume: 26 Issue: 2 Pages: 139-142

    • DOI

      10.18974/tvrsj.26.2_139

    • NAID

      130008058978

    • ISSN
      1344-011X, 2423-9593
    • Year and Date
      2021-06-30
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Redirection Controller Using Reinforcement Learning2021

    • Author(s)
      Chang Yuchen、Matsumoto Keigo、Narumi Takuji、Tanikawa Tomohiro、Hirose Michitaka
    • Journal Title

      IEEE Access

      Volume: 9 Pages: 145083-145097

    • DOI

      10.1109/access.2021.3118056

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 頭部回転運動時に光軸と瞳孔間距離を一定に保つ立体視テレプレゼンスシステム2021

    • Author(s)
      雨宮智浩, 青山一真, 廣瀬通孝
    • Journal Title

      日本バーチャルリアリティ学会論文誌

      Volume: 26(2)

    • NAID

      130008058978

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The relationship between the body and the environment in the virtual world: The interpupillary distance affects the body size perception2020

    • Author(s)
      Daisuke Mine, Nami Ogawa, Takuji Narumi, and Kazuhiko Yokosawa
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 4 Pages: e0232290-e0232290

    • DOI

      10.1371/journal.pone.0232290

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An Avatar that is used daily in the social VR contents enhances the sense of embodiment2020

    • Author(s)
      小柳 陽光、鳴海 拓志、大村 廉
    • Journal Title

      Transactions of the Virtual Reality Society of Japan

      Volume: 25 Issue: 1 Pages: 50-59

    • DOI

      10.18974/tvrsj.25.1_50

    • NAID

      130007822588

    • ISSN
      1344-011X, 2423-9593
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Impact of Long-Term Use of an Avatar to IVBO in the Social VR2021

    • Author(s)
      Akimi Oyanagi, Takuji Narumi, Kazuma Aoyama, Kenichiro Ito, Tomohiro Amemiya, Michitaka Hirose
    • Organizer
      HCI International 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] VRトレーニングシステムの開発の現状について2021

    • Author(s)
      廣瀬通孝
    • Organizer
      HIコンソーシアム定例会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Do You Feel Like Passing Through Walls?: Effect of Self-Avatar Appearance on Facilitating Realistic Behavior in Virtual Environments2020

    • Author(s)
      Nami Ogawa, Takuji Narumi, Michitaka Hirose
    • Organizer
      CHI2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 新世紀を迎えたVRの研究開発2020

    • Author(s)
      廣瀬通孝
    • Organizer
      機械学会VE/VR講習会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] テレワークとVR2020

    • Author(s)
      廣瀬通孝
    • Organizer
      機械学会D&Sシンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] ポストコロナ社会とVRとゲーム2020

    • Author(s)
      廣瀬通孝
    • Organizer
      CEDEC2020
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Wider IPD makes people perceive their body to be not so large when large hands are presented2019

    • Author(s)
      Daisuke Mine, Nami Ogawa, Takuji Narumi, Kazuhiko Yokosawa
    • Organizer
      ICAT-EGVE2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] VR環境下における方向認識の視聴覚統合2019

    • Author(s)
      高培鐘,松本啓吾,鳴海拓志,谷川智洋,廣瀬通孝
    • Organizer
      第24回バーチャルリアリティ学会大会
    • Related Report
      2019 Research-status Report

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Published: 2019-07-04   Modified: 2024-01-30  

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