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Paper Abstract and Keywords
Presentation 2010-03-16 14:00
A Study on Degradation Torelant Dssimilarity Measures
Aiko Oka, Toshikazu Wada (Wakayama Univ.) PRMU2009-306 HIP2009-191
Abstract (in Japanese) (See Japanese page) 
(in English) This report presents a set of dissimilarity measures suitable for image retrieval and matching tasks with degraded query images. Since local image features such as SIFT can easily be affected by global image degradations like motion blurring, we have to use pixel-by-pixel image dissimilarity measure. In this report, we confine the degradations to lacking of terms in arbitrary orthogonal expansion. In this case, if remained expansion coefficients match between two images, they should be the right pair. We first propose a method for computing sparse difference vectors consisting of coefficient differences for the right pairs. Next, a set of metric defined on vectors that take smaller values for sparser vectors while keeping the same L2 norm. Our dissimilarity measures are the combination of the difference vector computation and the sparsity sensitive metrics. Through the experiments, we confirmed that the one-by-one SQI matching rate by our measure is over two times bigger than that of normalized correlation for Extended Yale B Face database (subset 4).
Keyword (in Japanese) (See Japanese page) 
(in English) Dissimirality measures / image retrieval / Image identification / / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 470, PRMU2009-306, pp. 431-436, March 2010.
Paper # PRMU2009-306 
Date of Issue 2010-03-08 (PRMU, HIP) 
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 PRMU2009-306 HIP2009-191

Conference Information
Committee PRMU HIP  
Conference Date 2010-03-15 - 2010-03-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagoshima Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2010-03-PRMU-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Degradation Torelant Dssimilarity Measures 
Sub Title (in English)  
Keyword(1) Dissimirality measures  
Keyword(2) image retrieval  
Keyword(3) Image identification  
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1st Author's Name Aiko Oka  
1st Author's Affiliation Wakayama University (Wakayama Univ.)
2nd Author's Name Toshikazu Wada  
2nd Author's Affiliation Wakayama University (Wakayama Univ.)
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Speaker Author-1 
Date Time 2010-03-16 14:00:00 
Presentation Time 25 minutes 
Registration for PRMU 
Paper # PRMU2009-306, HIP2009-191 
Volume (vol) vol.109 
Number (no) no.470(PRMU), no.471(HIP) 
Page pp.431-436 
#Pages 6 
Date of Issue 2010-03-08 (PRMU, HIP) 

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