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Paper Abstract and Keywords
Presentation 2017-01-18 10:29
Deformation Estimation of Elastic Bodies Based on Global Intensity Information from Monocular Images
Akira Saito, Megumi Nakao (Kyoto Univ.), Yuki Uranishi (Osaka Univ.), Tetsuya Matsuda (Kyoto Univ.) MI2016-73
Abstract (in Japanese) (See Japanese page) 
(in English) This study proposes a method to estimate elastic deformation using intensity information obtained from monocular images. Our method allows to estimate local deformation of organs with internal structures using a finite element model reconstructed from preoperative CT data. We introduce evaluation function which quantifies the difference of intensity value between camera image and model image. The external force constraint is defined by evaluation function and the model shape is updated to satisfy this constraint based on finite element model method. The result of the experiments showed that the proposed methods could estimate the deformation with an error of 8.6% on average.
Keyword (in Japanese) (See Japanese page) 
(in English) deformation estimation / monocular shape reconstruction / finite element modeling / computer vision / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 393, MI2016-73, pp. 13-18, Jan. 2017.
Paper # MI2016-73 
Date of Issue 2017-01-11 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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 MI  
Conference Date 2017-01-18 - 2017-01-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tenbusu Naha 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Image Engineering, Analysis, Recognition, etc. 
Paper Information
Registration To MI 
Conference Code 2017-01-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Deformation Estimation of Elastic Bodies Based on Global Intensity Information from Monocular Images 
Sub Title (in English)  
Keyword(1) deformation estimation  
Keyword(2) monocular shape reconstruction  
Keyword(3) finite element modeling  
Keyword(4) computer vision  
1st Author's Name Akira Saito  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Megumi Nakao  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Yuki Uranishi  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Tetsuya Matsuda  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2017-01-18 10:29:00 
Presentation Time 12 minutes 
Registration for MI 
Paper # MI2016-73 
Volume (vol) vol.116 
Number (no) no.393 
Page pp.13-18 
Date of Issue 2017-01-11 (MI) 

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