| 基于序列非线性滤波SAR影像水体自动提取 |
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| 引用本文： | 窦建方,陈鹰,翁玉坤.基于序列非线性滤波SAR影像水体自动提取[J].海洋测绘,2008,28(4):69-72. |
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| 作者姓名： | 窦建方 陈鹰 翁玉坤 |
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| 作者单位： | 同济大学,测量与国土信息工程系,上海,200092 |
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| 摘 要： | 由于合成孔径雷达（SAR）图像中固有斑点噪声的强烈影响，某些对于光学图像有很好效果的目标提取区域分割方法，但是对于SAR图像来说，效果不很好，针对水体目标的亮度及形状分布特征，不作阈值分割处理，而采用序列非线性滤波处理方法，可以快速有效地实现SAR影像水体目标的自动提取识别。
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| 关 键 词： | 合成孔径雷达图像 斑点噪声 区域分割 水体提取 非线性滤波 阈值分割 |
Automatic Water Body Extraction from SAR Images Based on Sequence Non-linear Filter |
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| DOU Jian-fang,CHEN Ying,WENG YU-kun.Automatic Water Body Extraction from SAR Images Based on Sequence Non-linear Filter[J].Hydrographic Surveying and Charting,2008,28(4):69-72. |
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| Authors: | DOU Jian-fang CHEN Ying WENG YU-kun |
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| Institution: | ( Department of Surveying and Geo-Informatics, Tongji University, Shanghai ,200092 ) |
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| Abstract: | According to the impact of inherent speckle of SAR images.some edge detection operators have a good effect on optical images,but have a poor effect on SAR images.In this paper,as to the shape distributed characteristics and brightness of water body,we not use threshold segmentation processing,but adopt sequence non-linear filtering approach which can automatically extract and identify water body from SAR images quickly and efficiently. |
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| Keywords: | SAR images speckle regional segmentation water body extraction non-linear filter threshold segmentation |
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