| 改进小波阈值收缩法在去噪中的应用 |
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| 引用本文： | 陈新,冯其强,李宗春.改进小波阈值收缩法在去噪中的应用[J].海洋测绘,2010,30(3):65-66. |
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| 作者姓名： | 陈新 冯其强 李宗春 |
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| 作者单位： | 解放军信息工程大学,测绘学院,河南,郑州,450052 |
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| 摘 要： | 小波硬阈值法去噪是图像去噪的有效方法之一,但其产生的估计信号会有附加振荡。提出了一种基于多项式拟合的方法,将阈值函数连接成为一连续函数,振荡现象得到了明显减弱,达到了较好的效果。
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| 关 键 词： | 波变换 多项式拟合 硬阈值 |
Research on Ameliorative Wavelet Threshold Shrink Method to Remove Noise |
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| CHEN Xin,FENG Qi-qiang,LI Zong-chun.Research on Ameliorative Wavelet Threshold Shrink Method to Remove Noise[J].Hydrographic Surveying and Charting,2010,30(3):65-66. |
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| Authors: | CHEN Xin FENG Qi-qiang LI Zong-chun |
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| Affiliation: | Institute of Surveying and Mapping, Information Engineering University, Zhengzhou,Henan, 450052 |
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| Abstract: | Wavelet solid threshold method is one of the effective methods to remove noise. However, theestimated signal which produces has addictive surge. This paper puts forward a new method based onmultinomial fit. This method puts threshold function together to get a continuous function. The experiment resultshows that the new method is a good method because of reducing the phenomena of surge. |
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