| 利用GPS公路网数据进行影像纠正 |
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| 引用本文： | 张宏伟,陈军,廖安平,王东华.利用GPS公路网数据进行影像纠正[J].测绘软科学研究,2008(4):53-57. |
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| 作者姓名： | 张宏伟 陈军 廖安平 王东华 |
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| 作者单位： | 国家基础地理信息中心,北京100044 |
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| 基金项目： | 国家自然科学基金资盼页目（40501062）. |
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| 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。
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| 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 |
Image Rectification using Vector Road Map Measured by GPS |
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| ZHANG Hong-wei,CHEN Jun,LIAO An-ping,WANG Dong-hua.Image Rectification using Vector Road Map Measured by GPS[J].Research on Sofi Science of Surveying and Mapping,2008(4):53-57. |
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| Authors: | ZHANG Hong-wei CHEN Jun LIAO An-ping WANG Dong-hua |
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| Institution: | (National Geomatics Center of China. Beijing 100044, China) |
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| Abstract: | 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. |
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| Keywords: | vector road map measured by GPS general point bundle adjustment ortho-rectification map updating project at scale of 1：50 000 |
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