| ERDAS软件支持下的昆明市城区扩展对比 |
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| 引用本文： | 蔡宏,李俊.ERDAS软件支持下的昆明市城区扩展对比[J].测绘与空间地理信息,2006,29(4):72-75. |
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| 作者姓名： | 蔡宏 李俊 |
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| 作者单位： | 昆明理工大学,国土资源工程学院,云南,昆明,650093 |
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| 摘 要： | 在ERDAS软件中,通过数据导入、波段合成、几何校正、图像增强等处理,得到高质量的昆明地区2000年和2004年两时相遥感图像。用AOI种子扩展工具在图像上生成昆明市城区范围,做出城区扩展动态叠加图,并用测量工具测量统计得到:2004年昆明市城区面积已达180平方千米,而在2000年图像中这个数仅为130平方千米。在这四年内昆明市城区以年增长率1.64%的速度迅速扩展。且对比得出昆明市城区的扩展趋势,即城区主要向东南呈贡县方向,和东北金殿、松华坝水库方向发展,为城市土地资源的规划和治理提供依据。
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| 关 键 词： | 遥感 ERDAS 昆明市 城市扩展 图像增强 AOI种子扩展工具 |
| 文章编号： | 1672-5867(2006)04-0072-04 |
| 修稿时间： | 2005年8月25日 |
Comparison of the Urban Area Expanding of Kunming Supported by ERDAS Software |
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| CAI Hong,LI Jun.Comparison of the Urban Area Expanding of Kunming Supported by ERDAS Software[J].Geomatics & Spatial Information Technology,2006,29(4):72-75. |
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| Authors: | CAI Hong LI Jun |
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| Abstract: | It can get high quality remote sensing image of Kunming city by data input,bands composing,geometric correcting and image enhancement processing supported by ERDAS software.It also can generate the city area of Kunming in the image using AOI seed extended tool.With the measuring tool we can sum up that the area of Kunming city has reached 180 square kilometers in 2004 while it just was 130 square kilometers in 2000.Thus it has expanded in 1.64% rate of Kunming city in these four years.With the comparison of the two images in different period,we can get the expanding trend of Kunming city.Kunming city expanded to Chenggong county in southeast and Jindian,Songhua Dam in northeast.All these can supply foundation for planning and administration of city land resource. |
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| Keywords: | remote sensing ERDAS Kunming city city expand image enhancement AOI seed extended tool |
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