| 基于混合像元分解的武汉市湖泊面积变化监测 |
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| 引用本文： | 张晗,夏丹宁,张昊成,王晓昳.基于混合像元分解的武汉市湖泊面积变化监测[J].长江科学院院报,2011,28(5):67-70. |
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| 作者姓名： | 张晗 夏丹宁 张昊成 王晓昳 |
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| 作者单位： | 武汉大学 遥感信息工程学院，武汉 430072 |
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| 基金项目： | 2009国家大学生科研和创新性实验项目(091048644) |
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| 摘 要： | 以中等分辨率Landsat TM/ETM+为数据源的常用水体提取方法有阈值法、谱间关系法、归一化水体指数法和分类法,然而这些方法都未考虑混合像元的影响.遥感影像上不可避免的存在着混合像元,这使得基于像元的遥感信息提取精度难以满足较高精度应用需求.首先利用混合像元线性光谱分解方法从2006年武汉地区LandsatTM影像...
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| 关 键 词： | 混合像元 线性分解 湖泊面积 变化监测 |
Dynamic Monitoring of Lake Areas in Wuhan Based on Mixed Pixels Decomposition |
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| ZHANG Han,XIA Dan-ning,ZHANG Hao-cheng,WANG Xiao-yi.Dynamic Monitoring of Lake Areas in Wuhan Based on Mixed Pixels Decomposition[J].Journal of Yangtze River Scientific Research Institute,2011,28(5):67-70. |
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| Authors: | ZHANG Han XIA Dan-ning ZHANG Hao-cheng WANG Xiao-yi |
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| Affiliation: | School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | Conventional methods including threshold method,spectral structure method,normalized difference water index and classification method are used to delineate and extract water body from TM/ETM+ data collected by Landsat with medium spatial resolution.However,none of them take the impact of mixed pixel into account.Mixed pixels,unavoidable on remote sensing image,generally result in low precision of pixel-based information extraction,which makes it hard to meet the requirements of highly accurate applications.... |
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| Keywords: | mixed pixel linear spectral unmixing lake areas monitoring of changes |
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