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Technique of embedding information inside 3D-printed objects

Research Project

Project/Area Number 19H04141
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 61010:Perceptual information processing-related
Research InstitutionKanagawa Institute of Technology

Principal Investigator

Torii Hideyuki  神奈川工科大学, 情報学部, 教授 (20343642)

Co-Investigator(Kenkyū-buntansha) 上平 員丈  神奈川工科大学, 情報学部, 教授 (50339892)
鈴木 雅洋  聖泉大学, 人間学部, 准教授 (30397046)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywords3Dプリンタ / デジタルファブリケーション / 情報ハイディング / 情報埋め込み / 近赤外蛍光材 / ディープラーニング / 磁気記録 / 蛍光色素
Outline of Research at the Start

本研究は、3Dプリンタによる実物体の造形の際に内部に微細なパタンを形成することにより、実物体造形と同時にその内部に情報を埋め込む技術について研究する。通常の物体ではその内部は強度の維持など以外には特に機能は持たないが、本研究では物体内部を情報表現の場として活用する。そして、「情報」と「モノ」が融合した3Dプリンタならではの新しいデジタルモノづくりを提供する。具体的にはこれまでの基礎検討での蓄積をベースに情報の埋め込みとその非破壊読み出し法を確立する。また、機能材料を用いた情報埋め込みを検討し、3Dプリンタ造形物の高機能化の可能性を検討する。

Outline of Final Research Achievements

This study aims to achieve the technology of embedding digital information into the interior of physical objects created by a 3D printer, simultaneously with the fabrication process, and the technology to read the embedded information non-destructively. Near-infrared fluorescent dyes were used as embedding materials to make the embedding patterns detectable with high contrast, and the desired results were obtained. Additionally, we achieved a practical reading accuracy by applying a generative adversarial network to the reading images. Furthermore, we investigated the use of magnetic materials in the embedding patterns as a method to enable rewriting of the embedded information and demonstrated its feasibility.

Academic Significance and Societal Importance of the Research Achievements

3Dプリンタが普及すると、消費者はネットを介して商品の設計データを購入すれば、これを3Dプリンタに入力するだけで自宅やオフィスで所望の商品を簡単に製造して入手可能となる。このため、3Dプリンタは製造業や物流の世界を変革するといわれている。本研究が目指す、3Dプリンタで製造されるものの中にデジタル情報を埋め込む技術が実現されれば、IoTなどでの利用も可能になり、3Dプリンタ造形物の活用範囲が飛躍的に拡大して社会に大きなインパクトを与えることが期待される。

Report

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

    (9 results)

All 2023 2021 2020 2019

All Presentation (9 results) (of which Int'l Joint Research: 7 results)

  • [Presentation] High-accuaracy reading technology for QR codes embedded in 3D printed object using an autoencoder2023

    • Author(s)
      Hideyuki Torii, Masahiro Suzuki, and Kazutake Uehira
    • Organizer
      2023 International Workshop on Nonlinear Circuits, Communications and Signal Processing
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Technique for reading QR code embedded in 3D printed object by GAN2023

    • Author(s)
      Masahiro Suzuki, Hideyuki Torii, and Kazutake Uehira
    • Organizer
      2023 International Conference on Image, Video and Signal Processing
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Embedded Depth of Internal Printed Ferromagnetic Cell on Data Clarity of Rewritable 3D Objects2021

    • Author(s)
      Piyarat Silapasuphakornwong, Hideyuki Torii, Masahiro Suzuki, and Kazutake Uehira
    • Organizer
      Proceedings of Printing for Fabrication
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Mobile Scanner Application for Embedding Data inside 3D Fabricated Objects2021

    • Author(s)
      P. Silapasuphakornwong, K. Sookhanaphibarn, K. Uehira, C. Peansuwan, W. Pitjitlekha, A. Sinthawanon, M. Cheancharadpong, T. Chanthaworn, H. Torii
    • Organizer
      Proceedings of 2022 IEEE 4th Global Conference on Life Sciences and Technologies
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D Printing Technique to make Information inside an Object Rewritable: Effect of Amount of Filament on Readability2020

    • Author(s)
      Piyarat Silapasuphakornwong, Hideyuki Torii, Masahiro Suzuki, and Kazutake Uehira
    • Organizer
      Printing for Fabrication 2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Embedding Information in 3D Printed Objects with Curved Surfaces Using Near Infrared Fluorescent Dye2020

    • Author(s)
      Piyarat Silapasuphakornwong, Hideyuki Torii, Kazutake Uehira, and Siravich Chandenduang
    • Organizer
      International Conference on Advances in Multimedia
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Embedding Information in 3D Printed Objects with Curved Surfaces Using Near Infrared Fluorescent Dye2020

    • Author(s)
      Piyarat Silapasuphakornwong, Hideyuki Torii, Kazutake Uehira, Siravich Chandenduang
    • Organizer
      The 12th International Conference on Advances in Multimedia
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3D Printing Technique That Can Record Information Inside An Object As Rewritable2019

    • Author(s)
      Piyarat Silapasuphakornwong, Hideyuki Torii, Masahiro Suzuki, and Kazutake Uehira
    • Organizer
      Printing for Fabrication 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 磁性材配合樹脂による3Dプリンタ造形物内への書き換え可能な情報記録2019

    • Author(s)
      ピヤラット シラパスパコォンウォン、鈴木 雅洋、鳥井 秀幸、上平 員丈
    • Organizer
      Conference on 4D and Functional Fabrication 2019
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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