| Presentation | 2003/1/14 Designing for Threshold Values of Flat/Non-flat Image Blocks for Fractal Image Coding Xiaotong HU, Makoto FUJIMURA, Hideo KURODA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For fractal image coding, range blocks and domain blocks with standard deviations exceeding each thresh-old value are set as flat blocks or non-flat blocks. Flat range blocks are reconstructed only by their mean pixel values, and non-flat range blocks are reconstructed using the best matching domain blocks that are most similar to the range blocks selected from non-flat domain blocks. So, the threshold values of standard deviation for flat/non-flat range blocks and for flat/non-flat domain blocks influence the quality of the reconstructed image. In this paper, we propose a design method for threshold values of flat/non-flat blocks to obtain a high quality reconstructed image. From the results of simulation experiments, the relationship between the threshold value of flat/non-flat range blocks and of flat/non-flat domain blocks which can produce a high quality reconstructed image is expressed by a proportionality relationship. The approximation error is consequently suppressed to within 0.15 [dB]. So, the effectiveness of the proposed method using these threshold values is shown. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | IE2002-145 |
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| Committee | IE |
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| Conference Date | 2003/1/14(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Image Engineering (IE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Designing for Threshold Values of Flat/Non-flat Image Blocks for Fractal Image Coding |
| Sub Title (in English) | |
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| 1st Author's Name | Xiaotong HU |
| 1st Author's Affiliation | Graduate School of Science and Technology, Nagasaki University() |
| 2nd Author's Name | Makoto FUJIMURA |
| 2nd Author's Affiliation | Faculty of Engineering, Nagasaki University |
| 3rd Author's Name | Hideo KURODA |
| 3rd Author's Affiliation | Graduate School of Science and Technology, Nagasaki University |
| Date | 2003/1/14 |
| Paper # | IE2002-145 |
| Volume (vol) | vol.102 |
| Number (no) | 570 |
| Page | pp.pp.- |
| #Pages | 6 |
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