| 基于Landsat TM的城镇信息自动提取研究 |
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| 引用本文： | 杨云源,史正涛,徐成东,童绍玉.基于Landsat TM的城镇信息自动提取研究[J].遥感技术与应用,2009,24(5):654-659. |
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| 作者姓名： | 杨云源 史正涛 徐成东 童绍玉 |
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| 作者单位： | 1.楚雄师范学院地理科学与旅游管理系,云南 楚雄 675000 ；;
2.云南师范大学旅游与地理科学学院,云南 昆明 650092 |
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| 基金项目： | 云南省水利厅科技项目，云南省中青年学术技术带头人培养项目，国家自然科学基金 |
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| 摘 要： | 为实现城镇信息的自动提取,在Erdas的Modeler模块下构建计算模型,选取大城市、小城市和乡镇各一个研究区进行实验,通过试验发现了常见的基于Landsat TM的城镇信息提取方法的不足。运用了综合阈值法进行城镇信息自动提取,条件为NDVI<0、TM1/TM4>T和TM2+TM3
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| 关 键 词： | LandsatTM 综合阈值法 城镇信息自动提取 |
Study on Retrieving Urban Residential Areas Automatically Based on Landsat TM Data |
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| YANG Yun-yuan,SHI Zheng-tao,XU Cheng-dong,TONG Shao-yu.Study on Retrieving Urban Residential Areas Automatically Based on Landsat TM Data[J].Remote Sensing Technology and Application,2009,24(5):654-659. |
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| Authors: | YANG Yun-yuan SHI Zheng-tao XU Cheng-dong TONG Shao-yu |
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| Affiliation: | 1.The Department of Geography and Tourism Management,Chuxiong Normal University,Chuxiong 675000,China 2.The Faculty of Tourism and Geography,Yunnan Normal University,Kunming 650092,China |
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| Abstract: | In order to extract the urban residential areas automatically,this paper chose one of metropolis, small cities and towns respectively to carry out research experiment based on the calculation models built using the spatial modeler of Erdas Imagine. The results showed that the traditional extraction methods based on Landsat TM had disadvantages. This study established a comprehensive threshold method to retrieve urban residential areas automatically under the conditions of NDVKO, TM1/TM4>T and TM2 + TM3
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| Keywords: | LandsatTM Landsat TM Comprehensive threshold method Automatic retrieval of Urban Residential Areas |
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