| Presentation | 2007-11-30 A Method of JPEG Compression on Artifact Image using POCS Takashi MASUDA, Naoyuki AIKAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The JPEG standard is one of the most popular image compression schemes today. However, a major drawback of JPEG is that the compressed image exhibit visually annoying blocking, mosquito noise and ringing artifats, especially at high commpression ratio. Mosquito noise is typically seen when a sharp edge separating two uniform regions occurs within a block. In this paper, we propose a method of reducing distortion of near edge by making small steep change of the luminosity ingredient leading to a mosquito noise. Moreover, we ease deterioration of visual quality by adding compensation to the image using the theory of projections onto convex sets (POCS). Computer simulatios show that the proposed method could achieve a smaller file size compared with some other methods. This approach is easy to implement and is fully compatible with the existing JPEG standard and enables reaal-time application. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | JPEG / POCS / file size reduction / luminosity compensation |
| Paper # | IE2007-105 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2007/11/22(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 | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Method of JPEG Compression on Artifact Image using POCS |
| Sub Title (in English) | |
| Keyword(1) | JPEG |
| Keyword(2) | POCS |
| Keyword(3) | file size reduction |
| Keyword(4) | luminosity compensation |
| 1st Author's Name | Takashi MASUDA |
| 1st Author's Affiliation | Graduate School of Engineering, Nihon University() |
| 2nd Author's Name | Naoyuki AIKAWA |
| 2nd Author's Affiliation | College of Engineering, Nihon University |
| Date | 2007-11-30 |
| Paper # | IE2007-105 |
| Volume (vol) | vol.107 |
| Number (no) | 358 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |