摘要
结合国家1∶50000数据库更新工程中影像正射纠正的需要,充分利用GPS公路网数据作为控制源,结合控制点和控制线混合的广义点光束法区域网平差策略和算法,实现遥感影像的快速正射纠正,避免或减少了外业控制点的采集。经过分析两个试验区的正射纠正检查精度,基本上可以满足1∶50000比例尺正射影像的生产需要。
A new method of quick ortho-rectification of remote sensing imagery in national map updating project at the scale of 1：50 000 was proposed in this paper. General point bundle adjustment with hybrid ground control points and lines was handled by vector road map measured by GPS as ground control data, which greatly reduced the work of the field ground control point measurement. Experiments show the new method can be used for ortho-photo production at the scale of 1：50 000.
出处
《地理信息世界》
2008年第4期53-57,共5页
Geomatics World
基金
国家自然科学基金资助项目(40501062)
关键词
GPS公路网
广义点光束法平差
正射纠正
1:50
000数据库更新工程
vector road map measured by GPS
general point bundle adjustment
ortho-rectification
map updating project at scale of 1：50 000
