| 基于ETM+图像的厦门湾水体信息提取 |
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| 引用本文： | 林强,陈一梅,黄永葛.基于ETM+图像的厦门湾水体信息提取[J].水科学与工程技术,2008(Z2). |
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| 作者姓名： | 林强 陈一梅 黄永葛 |
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| 作者单位： | 1. 东南大学交通学院,南京,210096
2. 福建省港航管理局,福州,350001 |
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| 摘 要： | 选取厦门湾地区部分遥感图像作为试验区域,应用阈值法、谱间关系法、MNDWI指数法3种方法进行水体提取.将提取结果与同期实测水深数据对比,评价各种方法的提取精度.结果表明:MNDWI指数法兼具前两种方法的优点,能排除阴影和云层等信息的干扰,从而较为准确地提取水体.最后应用该方法对整个厦门湾地区的水体信息进行了提取,形成水体信息专题图,从而对厦门市的水体情况进行分析.
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| 关 键 词： | 水体提取 阚值法 谱间关系法 MNDWI指教法 精度评价 |
Extraction of information about water in Xiamen estuary based on ETM+ data |
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| LIN Qiang,CHEN Yi-mei,HUANG Yong-ge.Extraction of information about water in Xiamen estuary based on ETM+ data[J].Water Sciences and Engineering Technology,2008(Z2). |
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| Authors: | LIN Qiang CHEN Yi-mei HUANG Yong-ge |
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| Affiliation: | LIN Qiang1,CHEN Yi-mei1,HUANG Yong-ge2(1.Transportation College,Southeast University,Nanjing 210096,China,2.Fujian Provincial Harbor & Waterway Administrative Bureau,Fuzhou 350001,China) |
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| Abstract: | Selecting a part of remote sensing image in Xiamen esturay as the experimental area,three methods,threshold,bands relationship and MNDWI index were used in extraction of water.Comparing the results with depth data acquired synchronously,the extraction precision could be evaluated.The result indicated that the MNDWI index method,which had the advantages of other methods,could extract the water precisely excluding the information of shadow and cloud.Finally the whole water in Xiamen estuary was extracted by u... |
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| Keywords: | extraction of water threshold method bands relationship method MNDWI index method precision evaluation |
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