| Presentation | 2007-12-11 A shift-invariant non-negative sparse image representation with estimation of the number of bases Hidenari NISHIURA, Makoto NAKASHIZUKA, Youji IIGUNI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A sparse coding is one of the generative model for images, and can obtain bases that indicates features of an image under sparsity condition. In order to perform the decomposition, it is necessary to estimate the number of the bases that are correspond to the micro structures of the image texture. However, it is difficult to estimate the number of the different micro structures from an unknown image. In this paper, we propose an iterative method to estimate the number of the micro structures of the images through the shift-invariant sparse coding. In experiments, the proposed method is applied to the texture image separation. By this experiment, we demonstrated that the proposed method is effective for the representation of the texture images. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | estimation of the number of bases / sparse representation / sparse coding / image texture |
| Paper # | SIS2007-58 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2007/12/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A shift-invariant non-negative sparse image representation with estimation of the number of bases |
| Sub Title (in English) | |
| Keyword(1) | estimation of the number of bases |
| Keyword(2) | sparse representation |
| Keyword(3) | sparse coding |
| Keyword(4) | image texture |
| 1st Author's Name | Hidenari NISHIURA |
| 1st Author's Affiliation | Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Makoto NAKASHIZUKA |
| 2nd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Youji IIGUNI |
| 3rd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| Date | 2007-12-11 |
| Paper # | SIS2007-58 |
| Volume (vol) | vol.107 |
| Number (no) | 374 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |