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Paper Abstract and Keywords
Presentation 2017-11-06 15:35
Technique of Embedding Information inside 3-D Printed Objects With Near-Infrared Fluorescent Resin
Tomohisa Matumoto, Kousuke Nakamura, Hideyuki Torii (Kanagawa Inst. Tech.), Masahiro Suzuki (Tokiwa Univ.), Youichi Takashima (NTT), Kazutake Uehira (Kanagawa Inst. Tech.) EMM2017-57
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) 3-D Printer / Information Hiding / Near-Infrared Ray / Fluorescent Material / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 282, EMM2017-57, pp. 13-16, Nov. 2017.
Paper # EMM2017-57 
Date of Issue 2017-10-30 (EMM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee EMM  
Conference Date 2017-11-06 - 2017-11-07 
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 
Paper Information
Registration To EMM 
Conference Code 2017-11-EMM 
Language Japanese 
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  
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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.)
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Speaker Author-6 
Date Time 2017-11-06 15:35:00 
Presentation Time 25 minutes 
Registration for EMM 
Paper # EMM2017-57 
Volume (vol) vol.117 
Number (no) no.282 
Page pp.13-16 
#Pages 4 
Date of Issue 2017-10-30 (EMM) 

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