| 提升格式下几种去噪方法的比较 |
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| 引用本文： | 张学英. 提升格式下几种去噪方法的比较[J]. 数学杂志, 2006, 26(6): 701-705 |
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| 作者姓名： | 张学英 |
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| 作者单位： | 武汉科技大学理学院,湖北武汉,430081 |
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| 摘 要： | 本文比较了四种去噪声的效果,利用提升格式设计的灵活性,通过预算子或更新算子的设计最优匹配特定的信号,比较了软阈值函数、硬阈值函数、比例萎缩LAWML法和小波域中值滤波四种去噪方法.
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| 关 键 词： | 提升格式 小波变换 中值滤波 小波萎缩 |
| 文章编号： | 0255-7797（2006）06-0701-05 |
| 收稿时间： | 2004-08-10 |
| 修稿时间： | 2004-08-102005-02-25 |
COMPARISON OF SEVERAL DENOISING METHODS UNDER LIFTING SCHEME |
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| ZHANG Xue-ying. COMPARISON OF SEVERAL DENOISING METHODS UNDER LIFTING SCHEME[J]. Journal of Mathematics, 2006, 26(6): 701-705 |
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| Authors: | ZHANG Xue-ying |
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| Affiliation: | College of Science , Wuhan University of Science and Technology , Wuhan 430081 ,China |
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| Abstract: | This paper compares four denoising methods, namely soft-thresholding function, hard-thresholding function, LAWML and wavelet domain median filter under linear lifting wavelet transforms. The predictor and updater are designed for matching given signal optimally due to the design flexible of lifting scheme. |
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| Keywords: | lifting scheme wavelet transform median filters wavelet shrinkage |
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