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Development and medical application of innovative high resolution autostereoscopic display

Research Project

Project/Area Number 17H00750
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Human interface and interaction
Research InstitutionUniversity of Tsukuba

Principal Investigator

Kakeya Hideki  筑波大学, システム情報系, 准教授 (70334050)

Co-Investigator(Kenkyū-buntansha) 森 健作  筑波大学, 医学医療系, 准教授 (80361343)
大城 幸雄  東京医科大学, 医学部, 助教 (10535008)
岡田 俊之  筑波大学, 医学医療系, 助教 (90733650)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥38,870,000 (Direct Cost: ¥29,900,000、Indirect Cost: ¥8,970,000)
Fiscal Year 2020: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2019: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2018: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2017: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Keywordsバーチャルリアリティ / 3次元画像工学 / 医療画像工学 / 医用画像工学
Outline of Final Research Achievements

We have improved high resolution autostereoscopic displays based on time-division multiplexing parallax barrier and directional backlight for medical purposes. 4K resolutions, autostereoscopy for multiple viewers, and the reduction of electric power consumption have been realized as a result. To reduce vergence-accommodation conflict, which is a major factor for visual fatigue during stereoscopy, is solved by color and time multiplexing super-multiview technology. By using a refractometer, we have confirmed that the proposed system can induce human focal accommodation as expected. As for medical 3D contents, we have realized a deep-learning based system for automatic segmentation of abdominal organs and tumors. A visualization system for abdominal organs and tumors is combined with the autostereoscopic display proposed above.

Academic Significance and Societal Importance of the Research Achievements

この研究で実現した高精細裸眼立体ディスプレイの持つ、複数人同時観賞可能、低消費電力などの特徴は、医療用途に限らず、自動車のヘッドアップディスプレイなどにも活用可能である。また、輻輳調節矛盾を解消する色多重化時分割式の光線再生による超多眼表示は、遠近両方に焦点のあう随時かけっぱなし可能なスマートグラスに応用可能であり、これも医療用途に限らない応用が期待される。ディープラーニングを用いた臓器の自動セグメンテーションシステムは、まだ完全に自動化して使用するほどの信頼性は得ていないが、本研究で提案した3次元ディスプレイとの融合により、医師の診断を補助することは可能になっている。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report

Research Products

(65 results)

All 2021 2020 2019 2018 2017 Other

All Journal Article (14 results) (of which Peer Reviewed: 14 results,  Open Access: 7 results,  Acknowledgement Compliant: 2 results) Presentation (41 results) (of which Int'l Joint Research: 22 results,  Invited: 3 results) Book (2 results) Remarks (2 results) Patent(Industrial Property Rights) (6 results)

  • [Journal Article] Autostereoscopic displays with time-multiplexed directional backlight using curved lens arrays2021

    • Author(s)
      Borjigin, G. and Kakeya, H.
    • Journal Title

      ITE Trans. on MTA

      Volume: 9 Pages: 80-85

    • DOI

      10.1364/dh.2019.w2a.2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-division and color multiplexing light field display using LCD panels2021

    • Author(s)
      Watanabe, Y. and Kakeya, H.
    • Journal Title

      Applied Optics

      Volume: 60 Pages: 1966-1972

    • DOI

      10.1364/ao.424038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] [Paper] Autostereoscopy for Two Observers by Adaptive Fractional Time-Division Multiplexing Parallax Barrier2021

    • Author(s)
      Yang, B. and Kekaya, H.
    • Journal Title

      ITE Transactions on Media Technology and Applications

      Volume: 9 Issue: 2 Pages: 136-142

    • DOI

      10.3169/mta.9.136

    • NAID

      130008020070

    • ISSN
      2186-7364
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Autostereoscopic display for multi-viewers positioned at different distances using time-multiplexed layered directional backlight2021

    • Author(s)
      Borjigin, G. and Kakeya, H.
    • Journal Title

      Applied Optics

      Volume: 60 Pages: 3353-3357

    • DOI

      10.1364/ao.423012

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] [Paper] A Full-HD Super-Multiview Display Based on Adaptive Time-Division Multiplexing Parallax Barrier2020

    • Author(s)
      Watanabe, Y. and Kakeya, H.
    • Journal Title

      ITE Transactions on Media Technology and Applications

      Volume: 8 Issue: 4 Pages: 230-237

    • DOI

      10.3169/mta.8.230

    • NAID

      130007921384

    • ISSN
      2186-7364
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Autostereoscopic Display Based on Time-Multiplexed Parallax Barrier with Adaptive Time-Division2018

    • Author(s)
      Kakeya, H., Hayashishita, A., and Ominami, M.
    • Journal Title

      Journal of the Society for Information Display

      Volume: 26 Pages: 595-601

    • DOI

      10.1002/jsid.717

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] [Papers] Time-Division Quadruplexing Parallax Barrier with Subpixel-Based Slit Control2018

    • Author(s)
      Kakeya, H., Okada, K., and Takahashi, H.
    • Journal Title

      ITE Transactions on Media Technology and Applications

      Volume: 6 Issue: 3 Pages: 237-246

    • DOI

      10.3169/mta.6.237

    • NAID

      130007387399

    • ISSN
      2186-7364
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] [Invited Paper] A Liver Surgery Simulator Using Full HD Autostereoscopic Displays2018

    • Author(s)
      Kakeya Hideki、Yoshida Atsushi、Yang Bin、Oshiro Yukio、Ohkohchi Nobuhiro
    • Journal Title

      ITE Transactions on Media Technology and Applications

      Volume: 6 Issue: 1 Pages: 11-17

    • DOI

      10.3169/mta.6.11

    • NAID

      130006301778

    • ISSN
      2186-7364
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gastroenterological, Hepatobiliary and Pancreatic Surgery2017

    • Author(s)
      大城幸雄、大河内信弘
    • Journal Title

      JJSCAS

      Volume: 19(3) Issue: 3 Pages: 157-161

    • DOI

      10.5759/jscas.19.157

    • NAID

      130006178070

    • ISSN
      1344-9486, 1884-5770
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 3D liver surgery simulation: computer-assisted surgical planning with 3D simulation software and 3D printing2017

    • Author(s)
      Oshiro Y, Ohkohchi N.
    • Journal Title

      Tissue engineering part A

      Volume: 印刷中 Pages: 474-480

    • DOI

      10.1089/ten.tea.2016.0528

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 肝臓―肝離断のプロセスをシミュレートするコンピュータ手術支援―2017

    • Author(s)
      大城幸雄、岡田俊之、倉田昌直、大河内信弘
    • Journal Title

      日外会誌

      Volume: 118(1) Pages: 46-50

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel three-dimensional print of liver vessels and tumors in hepatectomy2017

    • Author(s)
      Oshiro Y, Mitani J, Okada T, Ohkohchi N
    • Journal Title

      Surgery Today

      Volume: 47 Pages: 521-524

    • DOI

      10.1007/s00595-016-1383-8

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Structure-by-structure Recognition of Spinal Columns, Ribs, Intervertebral Disks and Vertebrae from Abdominal X-ray CT Images2017

    • Author(s)
      保田竜也, 滝沢穂高, 奥村俊昭, 工藤博幸, 岡田俊之
    • Journal Title

      JJSCAS

      Volume: 19(3) Issue: 3 Pages: 131-138

    • DOI

      10.5759/jscas.19.131

    • NAID

      130006178086

    • ISSN
      1344-9486, 1884-5770
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interactive Segmentation of Pancreases in Abdominal Computed Tomography Images and Its Evaluation Based on Segmentation Accuracy and Interaction Costs2017

    • Author(s)
      Hotaka Takizawa, Takenobu Suzuki, Hiroyuki Kudo, and Toshiyuki Okada
    • Journal Title

      BioMed Research International

      Volume: 2017 Article ID 5094592 Pages: 1-8

    • DOI

      10.1155/2017/5094592

    • NAID

      120007134849

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 色時分割超多眼表示におけるちらつきの抑制2021

    • Author(s)
      掛谷英紀, 渡辺悠太
    • Organizer
      映像情報メディア学会立体映像技術研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] An autostereoscopic display with a deep viewing zone using time-multiplexed directional backlight2020

    • Author(s)
      Borjigin, G. and Kakeya, H.
    • Organizer
      SID Display Week 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A super-multiview display with horizontal and vertical parallax by time division and color multiplexing2020

    • Author(s)
      Watanabe, Y. and Kakeya, H.
    • Organizer
      SID Display Week 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Realization of time-division multiplexing parallax barrier using a lenticular lens,2020

    • Author(s)
      Mitomi, H. and Kakeya, H.
    • Organizer
      International Display Workshop 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An autostereoscopic display with time-multiplexed directional backlight using a novel linear Fresnel lens array2020

    • Author(s)
      Borjigin, G. and Kakeya, H.
    • Organizer
      International Display Workshop 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A super-multiview display by time division and color multiplexing with achromatic lenses2020

    • Author(s)
      Watanabe, Y. and Kakeya, H.
    • Organizer
      International Display Workshop 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] レンチキュラレンズを用いた時分割パララックスバリア方式での裸眼立体表示2020

    • Author(s)
      三富隼斗, 掛谷英紀
    • Organizer
      映像情報メディア学会立体映像技術研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 色消しレンズを用いた時分割と色多重化による超多眼立体表示ディスプレイ2020

    • Author(s)
      渡辺悠太, 掛谷英紀
    • Organizer
      映像情報メディア学会立体映像技術研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 腎臓の構造を反映したパッチ作成とデータ拡張による腎臓がんの自動識別2020

    • Author(s)
      樋口心, 石黒聡尚, 森健作, 古城公佑, 小島崇宏, 掛谷英紀
    • Organizer
      第29回日本コンピュータ外科学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] バリアの傾斜角を可変にした時分割パララックスバリア式裸眼立体表示2020

    • Author(s)
      竹内元気, 掛谷英紀
    • Organizer
      映像情報メディア学会冬季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] リカレントニューラルネットワークを用いた目の三次元軌道予測2020

    • Author(s)
      三富隼斗, 掛谷英紀
    • Organizer
      映像情報メディア学会冬季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Application of a high resolution autostereoscopic display for medical purposes2020

    • Author(s)
      Higuchi, K, Hayashishita, A., and Kakeya, H.
    • Organizer
      IS&T Electronic Imaging
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An Adaptive Time-Division Multiplexing Parallax Barrier Allowing Multiple Observers2019

    • Author(s)
      Yang, B. and Kakeya, H.
    • Organizer
      International Display Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Accommodation Response to a Super-Multiview Display Based on Time-Division Multiplexing Parallax Barrier2019

    • Author(s)
      Watanabe, Y. and Kakeya, H.
    • Organizer
      International Display Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An Autostereoscopic Display with Time-Multiplexed Directional Backlight Using a Curved Lens Array2019

    • Author(s)
      Borjigin, G. and Kakeya, H.
    • Organizer
      International Display Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A 4K Autostereoscopic Display Based on Time-Division Multiplexing Parallax Barrier2019

    • Author(s)
      Kakeya, H.
    • Organizer
      International Meeting on Information Display
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An Autostereoscopic Display with Time-Multiplexed Directional Backlight Using a Decentered Lens Array2019

    • Author(s)
      Borjigin, G. and Kakeya, H.
    • Organizer
      OSA Digital Holography and 3D Imaging
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time-Multiplexing Parallax Barrier with Fractional Time-Division2019

    • Author(s)
      Watanabe, Y, Hayashishita, A., and Kakeya, H.
    • Organizer
      SID DIsplay Week
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Full-HD super-multiview display with a deep viewing zone2019

    • Author(s)
      Kakeya, H. and Watanabe, Y.
    • Organizer
      IS&T Electronic Imaging
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time-Division Multiplexing Parallax Barrier System for Interactive 3D Visualization2018

    • Author(s)
      Kakeya, H
    • Organizer
      IDW
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Realization of Deep Viewing Zone with Adaptive Time-Division Multiplexing Parallax Barrier2018

    • Author(s)
      Hayashishita, A. and Kakeya, H.
    • Organizer
      IDW
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D U-JAPA-Net: Mixture of Convolutional Networks for Abdominal Multi-Organ CT Segmentation2018

    • Author(s)
      Kakeya, H., Okada, T., and Oshiro, Y.
    • Organizer
      MICCAI
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation on the Readability of Autostereoscopic Head-Up Displays2018

    • Author(s)
      Kakeya, H. and Yan, D.
    • Organizer
      3DSA
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Full-HD Super-Multiview Display with Time-Division Multiplexing Parallax Barrier2018

    • Author(s)
      Kakeya, H.
    • Organizer
      SID Display Week
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Time-Division Multiplexing Parallax Barrier with Sub-Subpixel Phase Shift2018

    • Author(s)
      Hayashishita, A. and Kakeya, H.
    • Organizer
      SID Display Week
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 可変時分割パララックスバリアによるによる超多眼立体表示の視域拡大2018

    • Author(s)
      渡辺悠太, 掛谷英紀
    • Organizer
      映像情報メディア学会冬季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 偏心レンズアレイを用いた時分割指向性バックライト式裸眼立体ディスプレイ2018

    • Author(s)
      ガリマガイ, 掛谷英紀
    • Organizer
      映像情報メディア学会冬季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 肝臓手術ナビゲーションの最先端と新規開発2018

    • Author(s)
      大城幸雄、岡田俊之、下村治、高橋一広、倉田昌直、小田竜也、北原格、矢野博明、伊藤正博、坂本堪亮、大河内信弘
    • Organizer
      つくば医工連携フォーラム2018
    • Related Report
      2017 Annual Research Report
  • [Presentation] Autostereoscopic Display Based on Time-Multiplexed Parallax Barrier with Adaptive Time-Division2017

    • Author(s)
      Kakeya, H., Hayashishita, A. and Ominami, M.
    • Organizer
      International Display Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How to Hand-Make a High Quality Full-HD Autostereoscopic Display2017

    • Author(s)
      Kakeya, H.
    • Organizer
      International Meeting on Information Display
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] An Aerial Autostereoscopic Display Using Time-Division Multiplexing Parallax Barrier2017

    • Author(s)
      Takahashi, H. and Kakeya, H.
    • Organizer
      SID Display Week
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超多眼ハイビジョン裸眼立体表示の実現2017

    • Author(s)
      掛谷英紀
    • Organizer
      映像情報メディア学会冬季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 4時分割斜めパララックスバリア式裸眼立体表示の視域拡大2017

    • Author(s)
      林下歩樹, 掛谷英紀
    • Organizer
      映像情報メディア学会冬季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 時分割パララックスバリアによる3D動画のちらつき低減,2017

    • Author(s)
      掛谷英紀
    • Organizer
      日本バーチャルリアリティ学会第22回大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 消化器外科におけるコンピュータ支援手術2017

    • Author(s)
      大城幸雄、岡田俊之、高橋一広、下村 治、明石義正、倉田昌直、小田竜也、大河内信弘
    • Organizer
      第30回日本内視鏡外科学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 肝切除におけるシミュレーションの効果とナビゲーションの未来2017

    • Author(s)
      大城幸雄、中山健、下村治、高橋一広、倉田昌直、小田竜也、大河内信弘
    • Organizer
      第79回日本臨床外科学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 腹部臓器多元計算解剖モデルによる知能化手術2017

    • Author(s)
      大城幸雄
    • Organizer
      第26回日本コンピュータ外科学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 計測用ガーゼを利用するリアルタイム手術ナビゲーション開発2017

    • Author(s)
      大城幸雄、岡田俊之、坂本堪亮、大河内信弘
    • Organizer
      第26回日本コンピュータ外科学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Preoperative simulation and navigation with computer aided surgery in open and laparoscopic liver resection2017

    • Author(s)
      Oshiro, Y., Nakayama, K., Takahashi, K., Kurata, M., Oda, T., Ohkochi, N.
    • Organizer
      第6回アジア太平洋肝胆膵学会・第29回日本肝胆膵外科学会学術集会
    • Related Report
      2017 Annual Research Report
  • [Presentation] われわれのコンピュータ外科手術支援の開発と運用と教育2017

    • Author(s)
      大城幸雄
    • Organizer
      第31回日本外傷学会総会・学術集会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 当科におけるコンピュータ画像支援肝切除の取り組み2017

    • Author(s)
      大城幸雄
    • Organizer
      第117回日本外科学会定期学術集会
    • Related Report
      2017 Annual Research Report
  • [Book] VR/AR技術の 開発動向と最新応用事例2018

    • Author(s)
      大林勇人, 掛谷英紀ほか計57名
    • Total Pages
      552
    • Publisher
      技術情報協会
    • ISBN
      9784861046940
    • Related Report
      2017 Annual Research Report
  • [Book] 車載用ディスプレイ・操作インターフェース2017

    • Author(s)
      今泉智和, 桜井幸広, 岡林繁, 新澤滋, 木下順一, 高木康博, 掛谷英紀, 他
    • Total Pages
      250
    • Publisher
      サイエンス&テクノロジー株式会社
    • ISBN
      9784864281553
    • Related Report
      2017 Annual Research Report
  • [Remarks] 筑波大学視覚メディア研究室

    • URL

      http://vmlab.kz.tsukuba.ac.jp

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] 視覚メディア研究室

    • URL

      http://vmlab.kz.tsukuba.ac.jp

    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 画像表示装置、及び画像表示方法2020

    • Inventor(s)
      掛谷英紀, 渡辺悠太
    • Industrial Property Rights Holder
      筑波大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-200263
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 裸眼立体画像表示装置、及び裸眼立体画像表示方法2020

    • Inventor(s)
      掛谷英紀
    • Industrial Property Rights Holder
      筑波大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-202675
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 画像表示装置、及び画像表示方法2020

    • Inventor(s)
      掛谷英紀, 三富隼斗
    • Industrial Property Rights Holder
      筑波大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-175498
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
  • [Patent(Industrial Property Rights)] 画像表示装置、及び画像表示方法2018

    • Inventor(s)
      掛谷英紀
    • Industrial Property Rights Holder
      筑波大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-194917
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] 画像処理装置、及びプログラム2018

    • Inventor(s)
      掛谷英紀, 岡田俊之
    • Industrial Property Rights Holder
      筑波大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-169663
    • Filing Date
      2018
    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] 画像表示装置、画像表示方法、及び画像表示システム2017

    • Inventor(s)
      掛谷英紀, 林下歩樹
    • Industrial Property Rights Holder
      掛谷英紀, 林下歩樹
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-233744
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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