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 武汉大学学报·信息科学版  2015, Vol. 40 Issue (3): 303-307

#### 文章信息

ZHANG Yongjun, HUANG Xu, HUANG Xinhui, XIONG Xiaodong

Relative Orientation Based on Intersecting Lines

Geomatics and Information Science of Wuhan University, 2015, 40(3): 303-307
http://dx.doi.org/10.13203/j.whugis20130238

### 文章历史

Relative Orientation Based on Intersecting Lines
ZHANG Yongjun, HUANG Xu, HUANG Xinhui, XIONG Xiaodong
School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, China
Abstract:In this paper, a new relative orientation algorithm based on intersecting lines is proposed. Relative orientation parameters are obtained with the intersection equations of the extracted corresponding intersecting lines. The algorithm needs no corresponding points and can be used to solve the problem of relative orientation lacking corresponding points. Experiments with aerial images, close-range images, and oblique images show that the proposed algorithm can get robust results. Relative orientation results are more accurate and robust when combining the proposed algorithm and the traditional relative orientation method using corresponding points.
Key words: relative orientation     corresponding features     intersecting lines     combined relative orientation     homogeneous coordinates

 图 1 同名相交直线示意图Fig. 1 Relative Orientation by Intersecting Lines

 图 2 航空影像同名点、相交直线分布示意图Fig. 2 Distribution of Corresponding Points, Corresponding Lines in Arial Images
2.1 航空影像相对定向实验

 实验数据 参数解算结果 检查精度/像素 迭代次数 φ/rad ω/rad κ/rad μ ν 9对同名点0对同名相交直线 -0.020 618 0.060 651 0.015 821 -0.017 788 -0.002 909 0.353 758 5 0对同名点 9对同名相交直线 -0.020 916 0.060 344 0.015 977 -0.018 793 -0.003 048 0.371 791 5 9对同名点9对同名相交直线 -0.020 913 0.060 340 0.015 891 -0.018 832 -0.003 114 0.337 584 5
 图 3 航空影像物方相交直线提取局部放大图Fig. 3 Partial Enlargement of Extracted Intersection Lines in Arial Images

 实验数据 参数解算结果 检查精度/像素 迭代次数 φ/rad ω/rad κ/rad μ ν 9对同名点 0对同名相交直线 -0.045 930 0.004 007 -0.014 373 0.068 255 0.049 169 0.610 620 5 0对同名点 9对同名相交直线 -0.051 597 0.003 071 -0.014 028 0.070 160 0.047 983 0.584 927 5 9对同名点 9对同名相交直线 -0.046 191 0.004 387 -0.014 563 0.066 804 0.048 703 0.524 309 6

 图 4 近景影像同名点、相交直线分布示意图Fig. 4 Distribution of Corresponding Points, Corresponding Lines in Close-range Images

 图 5 近景影像相交直线提取局部放大图Fig. 5 Partial Enlargement of Extracted Intersection Lines in Close-range Images
2.3 倾斜相机影像相对定向实验

 实验数据 参数解算结果 解算精度/像素 迭代次数 φ/rad ω/rad κ/rad μ ν 9对同名相交直线 -0.158 131 0.593 324 0.223 623 -11.768 946 1.896 531 1.330 422 15

 图 6 倾斜影像相交直线分布示意图Fig. 6 Distribution of Corresponding Lines in Oblique Images
3 结 语

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