| Presentation | 2012-03-08 Image Restoration with Union of Multiple DirLOTs Natsuki AIZAWA, Shogo MURAMATSU, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this report, an image restoration method by using Directional Lapped Orthonormal Transform (DirLOT), which the authors proposed previously, is investigated. The transform has an advantage in representing diagonal edges and textures in images because it is nonseparable processing and has directional property. This study, suggests to construct a redundant dictionary which has multiple directional property by using multiple directional symmetric orthonormal wavelet transform(DirSOWT). The multiple directional property is suitable for representing a natural picture containing diagonal geometrical structures. The dictionary is applied to image restoration and the performance is evaluated. In order to show the significance of the proposed method, the performance is also compared with the image restoration results through non-subsampled Haar transform. It is confirmed that the proposed method yields perceptually preferable results from experimental results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DirLOT / Sparse representation / Deblurring / Super-resolution / Inpainting / Parallel-coordinate-descent algorithm |
| Paper # | CAS2011-113,SIP2011-133,CS2011-105 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 2012/3/1(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Image Restoration with Union of Multiple DirLOTs |
| Sub Title (in English) | |
| Keyword(1) | DirLOT |
| Keyword(2) | Sparse representation |
| Keyword(3) | Deblurring |
| Keyword(4) | Super-resolution |
| Keyword(5) | Inpainting |
| Keyword(6) | Parallel-coordinate-descent algorithm |
| 1st Author's Name | Natsuki AIZAWA |
| 1st Author's Affiliation | Dept. of Electrical & Electronic Engineering, Niigata University() |
| 2nd Author's Name | Shogo MURAMATSU |
| 2nd Author's Affiliation | Dept. of Electrical & Electronic Engineering, Niigata University |
| Date | 2012-03-08 |
| Paper # | CAS2011-113,SIP2011-133,CS2011-105 |
| Volume (vol) | vol.111 |
| Number (no) | 465 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |