| 图像脉冲噪声的自适应长距离相关迭代滤波法 |
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| 引用本文： | 李迎春,孙继平. 图像脉冲噪声的自适应长距离相关迭代滤波法[J]. 计算机工程与设计, 2007, 28(1): 103-105 |
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| 作者姓名： | 李迎春 孙继平 |
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| 作者单位： | 中国矿业大学,机电与信息工程学院,北京,100083;中国矿业大学,机电与信息工程学院,北京,100083 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 提出一种基于局部极值噪声检测的自适应长距离相关迭代滤波算法.该算法首先采用局部极值法进行噪声检测,然后在一定的搜寻范围内计算信号点与噪声点的背景均方误差值,并以该背景均方误差值为基础采用自适应加权法进行滤波,最后将这一滤波过程进行迭代计算.实验结果表明,该算法滤波效果优于传统的滤波算法,它可以有效地去除图像中的脉冲噪声,并较好地保持图像细节信息,在噪声密度很大的情况下也表现出很好的滤波性能.
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| 关 键 词： | 脉冲噪声 噪声检测 图像增强 局部极值 中值滤波 |
| 文章编号： | 1000-7024（2007）01-0103-03 |
| 修稿时间： | 2005-12-11 |
Progressive filtering algorithm using adaptive long-range correlation for removal of impulse noise from images |
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| LI Ying-chun,SUN Ji-ping. Progressive filtering algorithm using adaptive long-range correlation for removal of impulse noise from images[J]. Computer Engineering and Design, 2007, 28(1): 103-105 |
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| Authors: | LI Ying-chun SUN Ji-ping |
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| Affiliation: | School of Mechanical, Electronic and Information Engineering, China University of Mining and Technology, Beijing 100083, China |
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| Abstract: | A progressive filter using adaptive long-range correlation for the removal of impulse noise from images is proposed.Impulse noise is detected by the method of local extremum at first.Then the background mean square error between signal pixels and noise pixels is computed in the definite searchrange,and the filtering process is going by the adaptive weightmethod basedon the value ofbackground mean square error.At last,the filtering process is applied iteratively.Simulation results show that the proposed algorithm is superior to many exiting methods.The proposed algorithm is effective for the removal of impulse noise and the holding of details.When images are highly corrupted,the proposed algorithm is also effective. |
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| Keywords: | impulse noise noise detection image enhancement local extremum median filtering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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