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Paper Abstract and Keywords
Presentation 2014-05-22 16:20
Recovering Shape and Size of Polyp from Endoscope Image
Seiya Tsuda, Yuji Iwahori (Chubu Univ.), Kunio Kasugai (Aichi Med. Univ.) SIP2014-6 IE2014-6 PRMU2014-6 MI2014-6
Abstract (in Japanese) (See Japanese page) 
(in English) VBW（Vogel-Breus-Weickert）model is proposed as a method to recover 3D shape under the condition of point light source illumination and perspective projection. However, VBW model recovers the relative shape but
there is a problem that the shape cannot be recovered with the exact size. Here, shape modification is introduced to recover the exact shape with modification from that with VBW model. First, a local brightest point is used to estimate the reflectance parameter using two images with the movement of endoscope camera along the depth. After the reflectance parameter is estimated, a sphere image is generated with the parameter and used for NN learning. NN is learned the mapping between input and output. Input is given as the output of gradient parameters of VBW model for the generated sphere. Output is given as the true gradient parameters of true values of the generated sphere. Learning mapping with NN can modify the gradient and the depth can be recovered according to the modified gradient parameters. Performance of the proposed approach is confirmed via computer simulation and real experiment.
Keyword (in Japanese) (See Japanese page) 
(in English) Endoscope Image / VBW Model / RBFNN / Recovered accuracy improvement / Reflection coefficient / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 42, MI2014-6, pp. 25-30, May 2014.
Paper # MI2014-6 
Date of Issue 2014-05-15 (SIP, IE, PRMU, MI) 
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)
Download PDF SIP2014-6 IE2014-6 PRMU2014-6 MI2014-6

Conference Information
Committee PRMU MI IE SIP  
Conference Date 2014-05-22 - 2014-05-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MI 
Conference Code 2014-05-PRMU-MI-IE-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Recovering Shape and Size of Polyp from Endoscope Image 
Sub Title (in English)  
Keyword(1) Endoscope Image  
Keyword(2) VBW Model  
Keyword(3) RBFNN  
Keyword(4) Recovered accuracy improvement  
Keyword(5) Reflection coefficient  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Seiya Tsuda  
1st Author's Affiliation Chubu University (Chubu Univ.)
2nd Author's Name Yuji Iwahori  
2nd Author's Affiliation Chubu University (Chubu Univ.)
3rd Author's Name Kunio Kasugai  
3rd Author's Affiliation Aichi Medical University (Aichi Med. Univ.)
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Speaker Author-1 
Date Time 2014-05-22 16:20:00 
Presentation Time 30 minutes 
Registration for MI 
Paper # SIP2014-6, IE2014-6, PRMU2014-6, MI2014-6 
Volume (vol) vol.114 
Number (no) no.39(SIP), no.40(IE), no.41(PRMU), no.42(MI) 
Page pp.25-30 
#Pages 6 
Date of Issue 2014-05-15 (SIP, IE, PRMU, MI) 

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