| Presentation | 2012-03-01 Improvement of Unsupervised Design Method of Weighted Median Filters Using Genetic Algorithm Yoshiko HANADA, Mitsuji MUNEYASU, Akira ASANO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Estimation of a suitable window shape and appropriate weights in weighted median filters is one of important problems. In this study, we formulate the design of weighted median filter as an optimization problem, and estimate optimal filters directly from degraded images. In our previous work, we estimated optimal window shapes and weights by using a Genetic Algorithm (GA) with a fixed size of window as a constraint in optimization. To determine an appropriate window size is difficult but essential since it depends on both a type of texture and a noise rate. Here, we optimize weighted median niters without the constraint in the size of filters. Numerical experiments show that designed filters outperform the niters obtained by our previous approach. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | texture images / impulse noise / weighted median filter / genetic algorithm |
| Paper # | SIS2011-62 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2012/2/23(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 | 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) | Improvement of Unsupervised Design Method of Weighted Median Filters Using Genetic Algorithm |
| Sub Title (in English) | |
| Keyword(1) | texture images |
| Keyword(2) | impulse noise |
| Keyword(3) | weighted median filter |
| Keyword(4) | genetic algorithm |
| 1st Author's Name | Yoshiko HANADA |
| 1st Author's Affiliation | Faculty of Engineering Science, Kansai University() |
| 2nd Author's Name | Mitsuji MUNEYASU |
| 2nd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 3rd Author's Name | Akira ASANO |
| 3rd Author's Affiliation | Faculty of Informatics, Kansai University |
| Date | 2012-03-01 |
| Paper # | SIS2011-62 |
| Volume (vol) | vol.111 |
| Number (no) | 457 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |