多像空间前方交会的抗差总体最小二乘估计
P231; 为充分利用现有观测数据来确定地面点位置,根据立体像对的前方交会原理,通过建立目标点到多条同名射线距离的加权平方和作为目标函数,对其求一阶和二阶导数,得到多像空间前方交会的抗差总体最小二乘估计.相对于立体像对,多张像片的空间前方交会方法可利用更多的观测信息并引入了稳健估计理论,具有更高的交会精度及稳健性能.最后,通过算例验证了该方法的正确性与稳健性,可一定程度上丰富摄影测量空间前方交会理论....
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| Published in | 测绘学报 Vol. 46; no. 5; pp. 593 - 604 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
海军工程大学导航工程系,湖北 武汉,430033%海军工程大学理学院,湖北 武汉,430033
2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 |
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| Abstract | P231; 为充分利用现有观测数据来确定地面点位置,根据立体像对的前方交会原理,通过建立目标点到多条同名射线距离的加权平方和作为目标函数,对其求一阶和二阶导数,得到多像空间前方交会的抗差总体最小二乘估计.相对于立体像对,多张像片的空间前方交会方法可利用更多的观测信息并引入了稳健估计理论,具有更高的交会精度及稳健性能.最后,通过算例验证了该方法的正确性与稳健性,可一定程度上丰富摄影测量空间前方交会理论. |
|---|---|
| AbstractList | P231; 为充分利用现有观测数据来确定地面点位置,根据立体像对的前方交会原理,通过建立目标点到多条同名射线距离的加权平方和作为目标函数,对其求一阶和二阶导数,得到多像空间前方交会的抗差总体最小二乘估计.相对于立体像对,多张像片的空间前方交会方法可利用更多的观测信息并引入了稳健估计理论,具有更高的交会精度及稳健性能.最后,通过算例验证了该方法的正确性与稳健性,可一定程度上丰富摄影测量空间前方交会理论. 为充分利用现有观测数据来确定地面点位置,根据立体像对的前方交会原理,通过建立目标点到多条同名射线距离的加权平方和作为目标函数,对其求一阶和二阶导数,得到多像空间前方交会的抗差总体最小二乘估计。相对于立体像对,多张像片的空间前方交会方法可利用更多的观测信息并引入了稳健估计理论,具有更高的交会精度及稳健性能。最后,通过算例验证了该方法的正确性与稳健性,可一定程度上丰富摄影测量空间前方交会理论。 |
| Abstract_FL | In order to take full advantage of available observation resources,based on theory of space intersection with stereo images,by conducting weighted quadratic sum of spatial distance from the target point to multiple space lines as the objective function and carrying out its first as well as second derivatives,robust total least squares estimation of space intersection appropriate for multi-images was realized.Compared to stereopair,more observed information and theories of robust estimation were considered in the process of space intersection with multi-images,bringing about higher intersection accuracy and robustness.Finally,correctness and robustness of the method was verified though example analysis,which can enrich the space intersection theory in photogrammetry to some degree. |
| Author | 李忠美 边少锋 瞿勇 |
| AuthorAffiliation | 海军工程大学导航工程系,湖北武汉430033 海军工程大学理学院,湖北武汉430033 |
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| Author_FL | LI Zhongmei BIAN Shaofeng QU Yong |
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| DocumentTitleAlternate | Robust Total Least Squares Estimation of Space Intersection Appropriate for Multi-images |
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| Keywords | 前方交会 总体最小二乘法 reweighting iteration method photogrammetry total least squares method 摄影测量 空间距离 multi-images 选权迭代法 space intersection spatial distance 多张像片 |
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| Notes | photogrammetry; multi-images; space intersection; spatial distance; total least squares method; reweighting iteration method In order to take full advantage of available observation resources,based on theory of space intersection with stereo images,by conducting weighted quadratic sum of spatial distance from the target point to multiple space lines as the objective function and carrying out its first as well as second derivatives,robust total least squares estimation of space intersection appropriate for multi-images was realized.Compared to stereopair,more observed information and theories of robust estimation were considered in the process of space intersection with multi-images,bringing about higher intersection accuracy and robustness.Finally,correctness and robustness of the method was verified though example analysis,which can enrich the space intersection theory in photogrammetry to some degree. 11-2089/P LI Zhongmei1 ,BIAN Shaofeng1 ,QU Yong2（ 1. Department of Navigation, Naval University of Engineering |
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| Publisher | 海军工程大学导航工程系,湖北 武汉,430033%海军工程大学理学院,湖北 武汉,430033 |
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| SubjectTerms | 前方交会 多张像片 总体最小二乘法 摄影测量 空间距离 选权迭代法 |
| Title | 多像空间前方交会的抗差总体最小二乘估计 |
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