| Presentation | 2010-03-16 A Study on Degradation Tolerant Dissimilarity Measures Aiko Oka, Toshikazu Wada, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Dissimirality measures / Image retrieval / Image identification |
| Paper # | PRMU2009-306,HIP2009-191 |
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| Conference Information | |
| Committee | HIP |
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| Conference Date | 2010/3/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Human Information Processing (HIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Degradation Tolerant Dissimilarity Measures |
| Sub Title (in English) | |
| Keyword(1) | Dissimirality measures |
| Keyword(2) | Image retrieval |
| Keyword(3) | Image identification |
| 1st Author's Name | Aiko Oka |
| 1st Author's Affiliation | Faculty of Systems Engineering, Wakayama University() |
| 2nd Author's Name | Toshikazu Wada |
| 2nd Author's Affiliation | Faculty of Systems Engineering, Wakayama University |
| Date | 2010-03-16 |
| Paper # | PRMU2009-306,HIP2009-191 |
| Volume (vol) | vol.109 |
| Number (no) | 471 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |