[1]曹兰英,夏良正,张昆辉.基于小波域MRF模型的SAR图像分割[J].东南大学学报(自然科学版),2004,34(6):847-850.[doi:10.3969/j.issn.1001-0505.2004.06.029]
 Cao Lanying,Xia Liangzheng,Zhang Kunhui.SAR image segmentation using MRF model in wavelet domain[J].Journal of Southeast University (Natural Science Edition),2004,34(6):847-850.[doi:10.3969/j.issn.1001-0505.2004.06.029]
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基于小波域MRF模型的SAR图像分割()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第6期
页码:
847-850
栏目:
图像处理
出版日期:
2004-11-20

文章信息/Info

Title:
SAR image segmentation using MRF model in wavelet domain
作者:
曹兰英1 夏良正1 张昆辉2
1 东南大学自动控制系, 南京 210096; 2 中国雷华电子技术研究所, 无锡 214063
Author(s):
Cao Lanying1 Xia Liangzheng1 Zhang Kunhui2
1 Department of Automatic Control Engineering, Southeast University, Nanjing 210096, China
2 Chinese Leihua Electronic Technical Research Institute, Wuxi 214063, China
关键词:
SAR图像 MRF模型 小波变换 图像分割
Keywords:
SAR image MRF model wavelet transform image segmentation
分类号:
TP722.6
DOI:
10.3969/j.issn.1001-0505.2004.06.029
摘要:
针对存在严重斑点噪声的合成孔径雷达(SAR)图像的分割问题,提出了一种基于小波域马尔科夫随机场(MRF)模型的算法.该算法综合利用了隐含马尔科夫树的相关邻域信息和图像的多分辨率描述的信息,将期望最大化用于先验概率分布参数的估计,采用最大后验准则来进行图像的分割.通过对SAR图像的分割实验表明,该算法可有效去除斑点噪声的影响,并能在准确分割目标的同时保留目标的细节信息.
Abstract:
To solve the problem of synthetic aperture radar(SAR)image segmentation with multiplicative nature of the speckle. Therefore an SAR image segmentation algorithm using Markov random field(MRF)model in wavelet domain is proposed, in which the information of adjacent pixels of hidden Markov tree(HMT)and the information of multi-scale described images are combined. The expectation-maximization(EM)method is used for estimation of pre-probability; the maximum a posteriori(MAP)is used for segmentation of images. Simulation shows that this algorithm can avoid the influence of speckle and achieve an accurate segmentation with detail information of the targets.

参考文献/References:

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[2] Weisenseel Robert A,Karl W Clem,Castanon David A,et al.MRF-based algorithms for segmentation of SAR images[A].In: IEEE Proceedings of the International Conference on Image Processing [C].Chicago,Illinois,1998,3:770-774.
[3] 郦苏丹,张翠,王正志.基于马尔科夫随机场的SAR图像目标分割[J].中国图像图形学报,2002,7(8):794-799.
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[4] Hua Xie,Pierce Leland E,Ulaby Fawwaz T.SAR speckle reduction using wavelet denoising and Markov random field modeling [J].IEEE Transactions on Geoscience and Remote Sensing, 2002, 40(10):2196-2212.
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备注/Memo

备注/Memo:
作者简介: 曹兰英(1970—),女,博士生,高级工程师; 夏良正(联系人),男,教授,博士生导师,lzxia@seu.edu.cn.
更新日期/Last Update: 2004-11-20