保持边缘的SAR图像滤波方法
Edge-preserving Filter for SAR Images
查看参考文献11篇
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文摘
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首先阐明了SAR图像边缘和边缘保持的概念。其次，提出了一种评价平滑图像边缘保持的方法。通过计算发现，常用的标准滤波方法：增强Lee滤波、Kuan滤波、增强Frost滤波和Gamma MAP滤波的边缘保持能力很差。最后发展了一种能保持边缘的SAR图像滤波方法。这种方法是对Han等人去除SAR图像斑点噪声方法的改进，并分析了这种方法能够保持图像边缘的原因。 |
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其他语种文摘
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This paper makes three contributions. It first clarifies the definition of edge and edge preservation in SAR images. The definition of edges preservation is important for edges preservation evaluation of digital speckle fil-ters. Only the definition of edges preservation is reasonable, the edges preservation evaluation can be successfully performed. Second, an algorithm to evaluate edges preservation of digital speckle filters is proposed. Application of this algorithm to SAR images processed by Enhanced Lee, Enhanced Frost, Gamma, and Kuan has shown that these methods cannot effectively preserve edges. Third, the authors develop a new edge-preserving speckle filters based on the method proposed by Han et al. and analyse the reason why the method proposed by Han et al. can effectively preserve edges in smoothed image. |
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来源
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高技术通讯
,2003,13(7):11-15 【核心库】
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关键词
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边缘
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边缘保持
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斑点噪声
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滤波
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地址
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中国科学院遥感应用研究所, 遥感信息科学开放研究实验室, 北京, 100101
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1002-0470 |
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学科
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自动化技术、计算机技术 |
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基金
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国家863计划
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文献收藏号
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CSCD:1203818
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参考文献 共
11
共1页
|
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1.
Lee J S. Optical Engineering.
Optical Engineering,1986,25(5):636
|
被引
69
次
|
|
|
|
|
2.
Shi Z H. A comparison of digital speckle filters.
Proceeding of International Geoscience and Remote Sensing Symposium, IGARSS'94,1994:2129
|
被引
1
次
|
|
|
|
|
3.
Lopes A. IEEE Transactions on Geoscience and Remote Sensing.
IEEE Transactions on Geoscience and Remote Sensing,1990,28(6):992
|
被引
109
次
|
|
|
|
|
4.
Lee J S. IEEE Transactions on Pattem Analysis and Madine Intelligence.
IEEE Transactions on Pattem Analysis and Madine Intelligence,1980,PAMI-2(2):165
|
被引
233
次
|
|
|
|
|
5.
Kuan D T. IEEE Transactions on Acoustics.
IEEE Transactions on Acoustics, Speech, and Signal Processing,1987,ASSP-35(3):373
|
被引
68
次
|
|
|
|
|
6.
Frost V S. IEEE Transactions on Pattern Analysis and Machine Intelligence.
IEEE Transactions on Pattern Analysis and Machine Intelligence,1982,PAMI-4(2):157
|
被引
177
次
|
|
|
|
|
7.
Lopes A. International Journal of Remote Sensing.
International Journal of Remote Sensing,1993,14(9):1735
|
被引
53
次
|
|
|
|
|
8.
Han C M. International of Remote Sensing.
International of Remote Sensing,2002,23(23):5095
|
被引
14
次
|
|
|
|
|
9.
Baraldi A. IEEE Transactions on Geoscience and Remote Sensing.
IEEE Transactions on Geoscience and Remote Sensing,1995,33(5):1245
|
被引
23
次
|
|
|
|
|
10.
Tur M. Appl Opt.
Goodman J W. Appl Opt,1982,21(7):1157
|
被引
11
次
|
|
|
|
|
11.
Touzi R. A.
IEEE Transactions on Geoscience and Remote Sensing,1988,26(6):764
|
被引
101
次
|
|
|
|
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