| 小波域上的图像降噪Wiener滤波器设计 |
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| 引用本文： | 涂丹,沈建军,封孝生,沈振康.小波域上的图像降噪Wiener滤波器设计[J].系统工程与电子技术,2001,23(6):4-7. |
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| 作者姓名： | 涂丹 沈建军 封孝生 沈振康 |
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| 作者单位： | 国防科技大学管理学院, |
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| 摘 要： | 小波阈值降噪技术利用小波变换表示信号的稀疏性质，使用对角形式的阈值滤波器达到信号降噪的目的，这个方法在很多信号空间上是近似最优的。但是对于任意信号，在MSE意义上最优的信号估计是Wiener滤波器。提出了一种小波域上的经验Wiener滤波器的设计方法，并应用于图像降噪。实验结果表明，此方法比一般小波阈值降噪法取得的效果要好得多。
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| 关 键 词： | 图像处理 信噪比 滤波器 降噪系统 |
| 文章编号： | 1001-506X(2001)06-0004-04 |
| 修稿时间： | 2000年5月28日 |
The Design of Wavelet Domain Wiener Filter and Its Application in Image Denoising |
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| Tu Dan Shen,Jianjun,FENG Xiaosheng,Shen Zhenkang.The Design of Wavelet Domain Wiener Filter and Its Application in Image Denoising[J].System Engineering and Electronics,2001,23(6):4-7. |
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| Authors: | Tu Dan Shen Jianjun FENG Xiaosheng Shen Zhenkang |
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| Institution: | Tu Dan\ \ Shen Jianjun\ \ Feng Xiaosheng\ \ Shen Zhenkang Management College,NUDT,Changsha 410073 |
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| Abstract: | Wavelet thresholding technology is using the sparse property of wavelet representation and diagonal filter for signal denoising . This method is nearly optimal in many signal spaces. But the Wiener filter is optimal for any space in the sense of MSE. A wavelet domain Wiener filter is developed in this paper. The design and the application in image denoising of this filter are proposed. The experiment result shows the Wiener filter is better than the standard wavelet thresholding method. |
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| Keywords: | Image processing Singal to noise ratio Filter Noise reduction system |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
