WorldView-2卫星影像立体成图技术的应用研究

Application of Stereoscopic Mapping Technology of WorldView-2 SatelliteImage

在沙特阿拉伯某研究区的背景下利用WorldView-2高分辨卫星影像制作1∶10000数字化地形图。详细论述了WGS84转换成UTM坐标系的算法与实现过程以及利用WorldView-2高分辨卫星影像生产1∶10000数字化地形图的过程。通过成图的精度对比,验证了利用WorldView-2高分辨卫星影像制作1∶10000数字化地形图的可靠性,能满足1∶10000数字化地形图生产的精度要求,甚至可达到1∶5000数字化地形图的要求。利用高分辨卫星影像制作数字化地形图从一定程度上减少了内外业测绘的时间,提高了生产效率,能为同类项目的测绘与地勘技术人员提供测量经验和参考依据。

In the context of a working area in Saudi Arabia,we used WorldView-2 high-resolution satellite images to produce the 1∶10000 digital topographic map.In this paper,we discussed the algorithm and the transforming process of WGS84 into UTM coordinate system,and introduced the production process of 1∶10000 digital topographic map using WorldView-2 high-resolution satellite images in detail.Through the comparison of drawing precision,we verified the reliability of producing 1∶10000 digital topographic map using WorldView-2 high-resolution satellite images,which could meet the precision requirement of 1∶10000 digital topographic map production,and even achieve the requirement of 1∶5000 digital topographic map production.The digital topographic map produced by highresolution satellite image can reduce the time of surveying and mapping to some extent,and improve production efficiency,which can provide experience and reference for surveying and mapping technicians in similar projects.