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Paper Abstract and Keywords
Presentation 2010-11-15 13:50
Denoising of MR Images Using FREBAS Collaborative Filtering
Masayuki Hizume, Satoshi Ito, Yoshifumi Yamada (Utsunomiya Univ.) MI2010-74
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a novel image denoising strategy based on the correlation in the FREBAS transformed domain. FREAS transform is a kind of multi-resolution image analysis which consists of two different Fresnel transforms. It can decompose images into down-scaled images having the same size and having different frequency bandwidth. Since these decomposed images have similar distribution for the same direction from the center of FREBAS domain. Even the FEBAS signal is hidden in the noise in low SNR image cases, the signal distribution can be estimated using the distribution of the FREBAS signal located nearby the interested position. We develop an collaborative Wiener filter in the FREBAS transformed domain which implement the collaboration of standard deviaton of interested position and that of analogous positions. The experimental results demonstrate that the proposed algorithm improve the SNR in terms of both total SNR and SNR on the edge of images.
Keyword (in Japanese) (See Japanese page) 
(in English) Fresnel Transform / Multi-Resolution Analysis / Wiener filter / NLM filter / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 280, MI2010-74, pp. 45-49, Nov. 2010.
Paper # MI2010-74 
Date of Issue 2010-11-08 (MI) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 MI  
Conference Date 2010-11-15 - 2010-11-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Shimadzu Corp. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Imaging 
Paper Information
Registration To MI 
Conference Code 2010-11-MI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Denoising of MR Images Using FREBAS Collaborative Filtering 
Sub Title (in English)  
Keyword(1) Fresnel Transform  
Keyword(2) Multi-Resolution Analysis  
Keyword(3) Wiener filter  
Keyword(4) NLM filter  
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1st Author's Name Masayuki Hizume  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Satoshi Ito  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Yoshifumi Yamada  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker Author-1 
Date Time 2010-11-15 13:50:00 
Presentation Time 25 minutes 
Registration for MI 
Paper # MI2010-74 
Volume (vol) vol.110 
Number (no) no.280 
Page pp.45-49 
#Pages
Date of Issue 2010-11-08 (MI) 


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