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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 |
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| 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 |
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| 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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