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Paper Abstract and Keywords
Presentation 2011-10-14 13:25
A 3D Reconstruction Method Using Tetrahedron Carving for AR Diorama System
Hiroyuki Yasuhara, Tomohiro Mashita, Kiyoshi Kiyokawa, Haruo Takemura (Osaka Univ.) MVE2011-48
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, augmented reality (AR) technologies, which overlay computer generated information onto the real world, have been widespread. Most AR systems, however, can play only AR contents that have been prepared in advance of the usage. We have previously proposed AR Diorama System that constructs AR contents by using a handheld camera and stroke input. However, there were problems in virtual object creation and object behavior authoring due to low precision of the 3D reconstruction. In this study, we consider to employ a better realtime 3D reconstruction method to improve AR Diorama System. Our approach is based on feature point tracking. A feature point cloud is extraced from a real object of interest, and then converted into a polygon mesh through a Delaunay tetrahedralisation. The tetrahedrons are carved away based on a feature-point visibility test to obtain a surface mesh approximating the target object, which is then texture mapped to create a virtual object. Experimental results show that our method can reconstruct better 3D models in terms of precision compared to the previous system.
Keyword (in Japanese) (See Japanese page) 
(in English) AR / Augmented Reality / 3D Reconstruction / PTAM / Single Camera / Feature Point Tracking / Tetrahedron Carving /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 235, MVE2011-48, pp. 91-96, Oct. 2011.
Paper # MVE2011-48 
Date of Issue 2011-10-06 (MVE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 MVE HI-SIG-VR  
Conference Date 2011-10-13 - 2011-10-14 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MVE 
Conference Code 2011-10-MVE-SIG-VR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A 3D Reconstruction Method Using Tetrahedron Carving for AR Diorama System 
Sub Title (in English)  
Keyword(1) AR  
Keyword(2) Augmented Reality  
Keyword(3) 3D Reconstruction  
Keyword(4) PTAM  
Keyword(5) Single Camera  
Keyword(6) Feature Point Tracking  
Keyword(7) Tetrahedron Carving  
Keyword(8)  
1st Author's Name Hiroyuki Yasuhara  
1st Author's Affiliation Graduate School of Information Science and Technology, Osaka University (Osaka Univ.)
2nd Author's Name Tomohiro Mashita  
2nd Author's Affiliation Graduate School of Information Science and Technology, Osaka University/Cybermedia Center, Osaka University (Osaka Univ.)
3rd Author's Name Kiyoshi Kiyokawa  
3rd Author's Affiliation Graduate School of Information Science and Technology, Osaka University/Cybermedia Center, Osaka University (Osaka Univ.)
4th Author's Name Haruo Takemura  
4th Author's Affiliation Graduate School of Information Science and Technology, Osaka University/Cybermedia Center, Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2011-10-14 13:25:00 
Presentation Time 25 minutes 
Registration for MVE 
Paper # MVE2011-48 
Volume (vol) vol.111 
Number (no) no.235 
Page pp.91-96 
#Pages
Date of Issue 2011-10-06 (MVE) 


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