| 基于Landsat ETM+影像的水体信息综合提取方法 |
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| 引用本文： | 吴文渊,沈晓华,邹乐君,卢善龙,章桂芳.基于Landsat ETM+影像的水体信息综合提取方法[J].科技通报,2008,24(2):252-259,271. |
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| 作者姓名： | 吴文渊 沈晓华 邹乐君 卢善龙 章桂芳 |
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| 作者单位： | 浙江大学,理学院,杭州,310027 |
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| 摘 要： | 以Landsat-7 ETM 影像为例,对比分析了常用的水体信息提取方法。针对已有方法无法准确提取河网支流和细小水体信息的缺点,提出了一种水体信息综合提取方法。方法利用谱间关系((TM2 TM3)-(TM4 TM5))和缨帽变换湿度分量TCW建立提取水体的最优空间掩膜,使用最大似然法去除最优空间掩膜中其他的地物信息。在浙江省绍兴及周边区域的实际工作中,本文方法较为完整地提取了研究区的水体信息,包括河网支流和细小水体。提取的相对精度优于其他方法。
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| 关 键 词： | Landsat ETM 水体提取 最优空间掩膜 支流和细小水体 |
| 文章编号： | 1001-7119（2008）02-0252-08 |
| 收稿时间： | 2007-10-20 |
| 修稿时间： | 2007年10月20 |
A Integrated Method for Water Body Detection and Delineation Using Landsat ETM+data |
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| WU Wenyuan,SHEN Xiaohua,ZHOU Lejun,LU Shanlong,ZHANG Guifang.A Integrated Method for Water Body Detection and Delineation Using Landsat ETM+data[J].Bulletin of Science and Technology,2008,24(2):252-259,271. |
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| Authors: | WU Wenyuan SHEN Xiaohua ZHOU Lejun LU Shanlong ZHANG Guifang |
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| Abstract: | In this paper,a new combination method has been applied to delineate and extract water body,using Enhanced Thematic Mapper(ETM ) data.The method is based on a spatial combination mask of the Spectrum-photometric Method((TM2 TM3)-(TM4 TM5)) index and the Tasseled Cap Wetness(TCW) index,and removing other objects from the mask image by using maximum likelihood classifier.In the case study of Shaoxing,the result shows that this method accurately extraction the water body,including river branches and small water areas,with a higher precision compared to other methods. |
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| Keywords: | Landsat ETM water body extraction optimal spatial mask river branch and small water area |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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