| Presentation | 2008-01-17 Estimation of PSF for Image Deblurring for Face Recognition Masashi Nishiyama, Hidenori Takeshima, Tatsuo Kozakaya, Osamu Yamaguchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a novel method for deblurring facial images to recognize faces deteriorated by blur. The main problem of this task is how to estimate a Point Spread Function(PSF) representing the process of blur. It is difficult to estimate a PSF from a single facial image due to an ill-posed problem. Our method uses a statistical model learnt from blurred faces of various individuals. We assume that blurred faces deteriorated by the same PSF are similar to each other and form a cluster in a statistical feature space. The statistical model is computed in this space for each PSF separately during training. For PSF estimation we compare a given facial image with each statistical model and select the closest one. Using the PSF corresponding to the selected statistical model, the given facial image is deblurred. Experimental results using the public face database FRGC1.0 show that our method improves the verification rate by over 17% for identification. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | PRMU2007-167 |
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| Committee | PRMU |
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| Conference Date | 2008/1/10(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of PSF for Image Deblurring for Face Recognition |
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| 1st Author's Name | Masashi Nishiyama |
| 1st Author's Affiliation | Corporate Research & Development, Toshiba Corporation() |
| 2nd Author's Name | Hidenori Takeshima |
| 2nd Author's Affiliation | Corporate Research & Development, Toshiba Corporation |
| 3rd Author's Name | Tatsuo Kozakaya |
| 3rd Author's Affiliation | Corporate Research & Development, Toshiba Corporation |
| 4th Author's Name | Osamu Yamaguchi |
| 4th Author's Affiliation | Corporate Research & Development, Toshiba Corporation |
| Date | 2008-01-17 |
| Paper # | PRMU2007-167 |
| Volume (vol) | vol.107 |
| Number (no) | 427 |
| Page | pp.pp.- |
| #Pages | 8 |
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