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Paper Abstract and Keywords
Presentation 2009-09-25 10:30
Extension of Unsupervised Design Method for Weighted Median Filters Using GA
Yoshiko Hanada, Mitsuji Muneyasu (Kansai Univ.), Akira Asano (Hiroshima Univ.) SIP2009-49 SIS2009-24
Abstract (in Japanese) (See Japanese page) 
(in English) Estimation of a suitable window shape and appropriate weights in weighted median filters is one of important problems. In this study, we formulate the design of weighted median filter as an optimization problem, and optimal window shapes and weights are estimated directly from degraded images. In the previous work, we estimated them by using a Genetic Algorithm (GA) on texture images corrupted by positive impulse noises. Here, we extends our proposed unsupervised design to the positive and negative impulse removal. Through experiments, it is shown that designed filters outperform compared to conventional impulse noise filters from the perspective of both high noise removal performance and preservative quality.
Keyword (in Japanese) (See Japanese page) 
(in English) texture images / impulse noise / weighted median filter / genetic algorithm / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 203, SIS2009-24, pp. 65-70, Sept. 2009.
Paper # SIS2009-24 
Date of Issue 2009-09-17 (SIP, SIS) 
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 SIP2009-49 SIS2009-24

Conference Information
Committee SIS SIP IPSJ-AVM  
Conference Date 2009-09-24 - 2009-09-25 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To SIS 
Conference Code 2009-09-SIS-SIP-AVM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Extension of Unsupervised Design Method for Weighted Median Filters Using GA 
Sub Title (in English)  
Keyword(1) texture images  
Keyword(2) impulse noise  
Keyword(3) weighted median filter  
Keyword(4) genetic algorithm  
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1st Author's Name Yoshiko Hanada  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Mitsuji Muneyasu  
2nd Author's Affiliation Kansai University (Kansai Univ.)
3rd Author's Name Akira Asano  
3rd Author's Affiliation Hiroshima University (Hiroshima Univ.)
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Speaker Author-1 
Date Time 2009-09-25 10:30:00 
Presentation Time 25 minutes 
Registration for SIS 
Paper # SIP2009-49, SIS2009-24 
Volume (vol) vol.109 
Number (no) no.202(SIP), no.203(SIS) 
Page pp.65-70 
#Pages 6 
Date of Issue 2009-09-17 (SIP, SIS) 

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