Presentation 2017-11-06
Technique of Embedding Information inside 3-D Printed Objects With Near-Infrared Fluorescent Resin
Tomohisa Matumoto, Kousuke Nakamura, Hideyuki Torii, Masahiro Suzuki, Youichi Takashima, Kazutake Uehira,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We have been studying a method of embedding information inside an object fabricated with a resin material using a 3D printer by forming pattern inside the object that expresses information. In this report, we report the new method of forming an internal pattern with a near infrared fluorescent resin material in order to improve the accuracy of reading embedded information. In this method, when an object is irradiated with near-infrared light of a specific wavelength that excites the fluorescent resin material, the fluorescent resin emits light at a wavelength different from that of the excitation light. Therefore, if only the light emitted by the fluorescent material is used for capturing near infrared image by using the optical filter, only the image of the pattern embedded in the object can be captured, and information reading with high accuracy can be expected. Using a fused deposition-modeling 3D printer with two nozzles, the main body of an abject was formed with one nozzle using ABS resin, and the other nozzle formed an internal pattern with ABS resin containing fluorescent dye. We confirmed that clear images of internal patterns could be captured and the effectiveness of this method was demonstrated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 3-D Printer / Information Hiding / Near-Infrared Ray / Fluorescent Material
Paper # EMM2017-57
Date of Issue 2017-10-30 (EMM)

Conference Information
Committee EMM
Conference Date 2017/11/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kagoshima Univ. (Inamori Academy)
Topics (in Japanese) (See Japanese page)
Topics (in English) Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics
Chair Keiichi Iwamura(TUS)
Vice Chair Hirohisa Hioki(Kyoto Univ.) / Minoru Kuribayashi(Okayama Univ.)
Secretary Hirohisa Hioki(Shizuoka Univ.) / Minoru Kuribayashi(Tokyo Metro. Univ.)
Assistant Kan Hyonho(NIT, Tokyo) / Harumi Murata(Chukyo Univ.)

Paper Information
Registration To Technical Committee on Enriched MultiMedia
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Technique of Embedding Information inside 3-D Printed Objects With Near-Infrared Fluorescent Resin
Sub Title (in English)
Keyword(1) 3-D Printer
Keyword(2) Information Hiding
Keyword(3) Near-Infrared Ray
Keyword(4) Fluorescent Material
1st Author's Name Tomohisa Matumoto
1st Author's Affiliation Kanagawa Institute of Technology(Kanagawa Inst. Tech.)
2nd Author's Name Kousuke Nakamura
2nd Author's Affiliation Kanagawa Institute of Technology(Kanagawa Inst. Tech.)
3rd Author's Name Hideyuki Torii
3rd Author's Affiliation Kanagawa Institute of Technology(Kanagawa Inst. Tech.)
4th Author's Name Masahiro Suzuki
4th Author's Affiliation Tokiwa University(Tokiwa Univ.)
5th Author's Name Youichi Takashima
5th Author's Affiliation NTT Service Evolution Laboratories(NTT)
6th Author's Name Kazutake Uehira
6th Author's Affiliation Kanagawa Institute of Technology(Kanagawa Inst. Tech.)
Date 2017-11-06
Paper # EMM2017-57
Volume (vol) vol.117
Number (no) EMM-282
Page pp.pp.13-16(EMM),
#Pages 4
Date of Issue 2017-10-30 (EMM)