| 基于TM影像的城市建筑用地信息提取方法研究 |
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| 引用本文： | 戴建光,蔡海良.基于TM影像的城市建筑用地信息提取方法研究[J].现代测绘,2008,31(6). |
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| 作者姓名： | 戴建光 蔡海良 |
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| 作者单位： | 1. 常州市武进城乡建设测量队,江苏,常州,213161
2. 广州奥格智能科技有限公司,勘测事业部,广东,广州,510663 |
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| 摘 要： | 本文选用金华市Landsat TM影像为研究的数据源，在归一化裸露指数基础上，利用归一化植被指数提取出非植被信息，通过图像二值化、叠加分析以及掩膜处理去除了低密度植被覆盖区域的噪音信息，自动提取了金华城市建筑用地信息。研究结果表明，归一化裸露指数和归一化植被指数相结合的方法弥补了单一利用归一化裸露指数来提取城市建筑用地信息的不足，提高了提取精度，而且结果客观可信，是一种不经人为干预的、快速有效的提取城市建筑用地方法。
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| 关 键 词： | 城市建筑用地 遥感信息提取 NDBI NDVI 金华市 |
Methods for extraction of urban built-up land information based on TM Data |
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| Dai Jianguang,CAI Hailiang.Methods for extraction of urban built-up land information based on TM Data[J].Modern Surveying and Mapping,2008,31(6). |
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| Authors: | Dai Jianguang CAI Hailiang |
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| Institution: | Dai Jianguang,CAI Hailiang(1 Changzhou Municipal Wujin Urban , Rural Construction Survey Team,2 The Department of Surveying,Guangzhou Augur Intelligence Technology Co.,Ltd,Guangzhou 510663,China) |
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| Abstract: | In this paper we selects Landsat TM image as data resources which covers Jinhua City.We could extract urban built-up land information through normalized difference barren index(NDBI),but the results contain other land cover information like low density vegetation cover areas.The most important reason is urban built-up land and low density areas have similar spectral response on band4 and band5 of Landsat TM image.Considering that normalized difference vegetation index(NDVI) reflect vegetation information,we... |
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| Keywords: | urban built-up land remote sensing information extraction NDBI NDVI Jinhua City |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
