| 一种基于直线特征的影像外方位元素解算理论与方法 |
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| 引用本文： | 郭海涛,张龙星,申家双,张进,孙小鹏.一种基于直线特征的影像外方位元素解算理论与方法[J].测绘学院学报,2011(1). |
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| 作者姓名： | 郭海涛 张龙星 申家双 张进 孙小鹏 |
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| 作者单位： | 信息工程大学测绘学院;海军海洋测绘研究所; |
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| 基金项目： | 国家863计划资助项目(2009AA12Z218) |
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| 摘 要： | 与点特征相比,影像上的线特征,特别是直线特征,具有识别相对容易、使用灵活等优点,因此对直线摄影测量的研究已成为目前摄影测量的一个重要研究方向。依据空间直线在航空影像上的投影仍然是直线,并结合共线条件方程,通过线性化,推导了基于直线特征计算像片外方位元素的误差方程;并且给出了计算过程。最后,通过实验验证了基于线特征计算像片外方位元素理论与方法的可行性和可靠性。同其他方法相比,该方法具有易于理解、便于计算、实用性强、易于实现影像自动外部定向等特点。
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| 关 键 词： | 线特征 外方位元素 空间后方交会 直线摄影测量 航空影像 |
The Theory and Method for Computing Exterior Orientation Elements of Image Based on Linear Feature |
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| GUO Hai-tao,ZHANG Long-xing,SHEN Jia-shuang,ZHANG Jin,SUN Xiao-peng.The Theory and Method for Computing Exterior Orientation Elements of Image Based on Linear Feature[J].Journal of Institute of Surveying and Mapping,2011(1). |
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| Authors: | GUO Hai-tao ZHANG Long-xing SHEN Jia-shuang ZHANG Jin SUN Xiao-peng |
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| Institution: | GUO Hai-tao1,2,ZHANG Long-xing1,SHEN Jia-shuang1,ZHANG Jin1,SUN Xiao-peng1(1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China,2.Navel Institute of Hydrographic Surveying and Charting,Tianjin 300061,China) |
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| Abstract: | Comparing with point feature in image,linear feature,special straight lines are easier to recognize and more flexible to do.Research on line photogrammetry is becoming an important direction of photogrammetry.Utilizing the characteristic that projection of space straight line is still a straight line in aerial imagery and combining collinearity equation,an error equation of computing exterior orientation elements based on linear feature was deduced.Computation process was also given.Finally,the result of th... |
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| Keywords: | linear feature exterior orientation elements space resection line photogrammetry aerial imagery |
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