| 采用小波域α稳定分布的图像去噪 |
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| 引用本文： | 王忠华.采用小波域α稳定分布的图像去噪[J].江西师范大学学报(自然科学版),2006,30(4):342-345. |
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| 作者姓名： | 王忠华 |
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| 作者单位： | 江西师范大学,光电子与通信重点实验室,江西,南昌,330027;南昌航空工业学院,电子工程系,江西,南昌,330034 |
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| 摘 要： | 基于统计模型的图像去噪的关键是统计模型的选取.α稳定分布能很好地表示具有严重拖尾的数据的统计分布.该文采用α稳定分布来对图像小波域系数进行建模,并采用贝叶斯估计来对无噪图像进行估计.通过将该算法与近来的一些方法进行比较,仿真结果表明该算法具有好的去噪效果.
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| 关 键 词： | α稳定分布 小波变换 图像去噪 贝叶斯估计 |
| 文章编号： | 1000-5862（2006）04-0342-04 |
| 收稿时间： | 2006-03-10 |
| 修稿时间： | 2006-03-10 |
Image Denoising Using Alpha Stable Distribution in Wavelet Domain |
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| WANG Zhong-hua.Image Denoising Using Alpha Stable Distribution in Wavelet Domain[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2006,30(4):342-345. |
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| Authors: | WANG Zhong-hua |
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| Abstract: | The key of image denoising based on statistical model is the selection of the model.Inthis paper,we usealpha stable distributionto model the statistical characteristics of image,which can better capture the heavy-tailed na-ture of the data.We design a Bayesian estimator to estimate the true image formthe noisy image in wavelet domain.We compare this method with several recently published methods.The simulation results showour proposed methodachieves state-of-the-art performance intermof PSNR. |
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| Keywords: | alpha stable distribution wavelet transform image denoising Bayesian estimator |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
