| Presentation | 2009-02-05 A Note on Resolution Enhancement of Still Images Using a Phase Retrieval Method Tomoki HIRAMATSU, Takahiro OGAWA, Miki HASEYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, an ER (Error-Reduction) algorithm-based method for resolution enhancement of still images is proposed. Since Fourier-domain and object-domain constraints are needed for any ER algorithm-based method, the proposed method introduces the following two constraints for resolution enhancement. The first one is the Fourier-domain constraint that utilizes the Fourier transform magnitude estimated from an autocorrelation function of the target low-resolution (LR) image as that of a high-resolution (HR) image. The second constraint is the object-domain constraint that utilizes the frequency components of the LR image as the known low-frequency components of the HR image. By using the ER algorithm which is introduced the above two constraints, an accurate HR image can be obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Resolution enhancement / Image enlargement / Super-resolution / ER algorithm / Autocorrelation function |
| Paper # | ITS2008-80,IE2008-250 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2009/1/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Note on Resolution Enhancement of Still Images Using a Phase Retrieval Method |
| Sub Title (in English) | |
| Keyword(1) | Resolution enhancement |
| Keyword(2) | Image enlargement |
| Keyword(3) | Super-resolution |
| Keyword(4) | ER algorithm |
| Keyword(5) | Autocorrelation function |
| 1st Author's Name | Tomoki HIRAMATSU |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Takahiro OGAWA |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Miki HASEYAMA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2009-02-05 |
| Paper # | ITS2008-80,IE2008-250 |
| Volume (vol) | vol.108 |
| Number (no) | 424 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |