| 利用单张航空像片和DEM实现GIS空间数据的更新 |
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| 引用本文： | 姚杰,江碧涛.利用单张航空像片和DEM实现GIS空间数据的更新[J].测绘学院学报,1996(4). |
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| 作者姓名： | 姚杰 江碧涛 |
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| 摘 要： | 利用遥感信息获取空间地理数据是ＧＩＳ与ＲＳ技术集成应用研究的重要方面。运用数字地形数据和共线方程，对扫描数字化的单张调绘航片进行数字纠正，从而更新ＧＩＳ空间数据库的方法，是一种可供选择且很有吸引力的空间源数据获取方法。本文介绍的系统可在没有摄影测量设备的情况下运行，所需的硬件设备并不昂贵．其特点和精度均能较好地适用于大比例尺ＧＩＳ的应用。
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| 关 键 词： | 地理信息系统，数字高程模型，数据更新，航空像片 |
Updating Spatial Data of GIS with a Single Photo and DEM |
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| Yao Jie,Jiang Bitao.Updating Spatial Data of GIS with a Single Photo and DEM[J].Journal of Institute of Surveying and Mapping,1996(4). |
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| Authors: | Yao Jie Jiang Bitao |
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| Institution: | Yao Jie;Jiang Bitao |
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| Abstract: | How to acquire spatial data making use of the remote sensing image is the important aspect of the applications of a integrated system of GIS and RS. Updating the spatial database of a GIS by rectifying a single digital identified photograph according to the DEM and collinearity equation is a kind of attractive method acquiring original spatial data.The system introducted herein. being independent of the photogrammtric device, has high precision which can be satisfied for GIS at a greater scale. |
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| Keywords: | GIS Digital elevation model Data updating Aerial photograph |
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