| 视觉测量中相机外参数近似值的快速求解 |
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| 引用本文： | 王保丰,顾航程,黄桂平,陈继华.视觉测量中相机外参数近似值的快速求解[J].测绘学院学报,2006(3). |
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| 作者姓名： | 王保丰 顾航程 黄桂平 陈继华 |
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| 作者单位： | 信息工程大学测绘学院 河南郑州450052(王保丰，黄桂平，陈继华)，73603部队 江苏南京210000(顾航程) |
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| 摘 要： | 提出了利用3个不共线的控制点对相机外参数近似值进行快速求解的一种方法。利用3个控制点与其像坐标间的几何关系求得3个控制点在摄站坐标系下的坐标;由控制点的已知控制坐标与求得的摄站坐标系下的坐标,进一步求得两坐标系的转换参数的初值;通过解析法或光束法对相机外参数用初值进行精确标定。并通过一组模拟数据验证了该方法的正确性。
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| 关 键 词： | 控制点 转换参数 外参数 相机标定 |
Method of Calculating Synoptical Elements of Exterior Orientation |
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| WANG Bao-feng,GU Hang-cheng,HUANG Gui-ping,CHEN Ji-hua.Method of Calculating Synoptical Elements of Exterior Orientation[J].Journal of Institute of Surveying and Mapping,2006(3). |
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| Authors: | WANG Bao-feng GU Hang-cheng HUANG Gui-ping CHEN Ji-hua |
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| Institution: | WANG Bao-feng~1,GU Hang-cheng~2,HUANG Gui-ping~1,CHEN Ji-hua~1 |
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| Abstract: | The paper puts forward a method to calculate quickly synoptical elements of exterior orientation by three control points.Firstly,the coordinates of three control points in photogrammetric coordinates system are calculated by three control points and their photogrammetric coordinates.Then the synoptical conversion parameter is calculated by control coordinates and photogrammetric coordinates of three control points.And then elements of exterior orientation is calibrated accurately using synoptical conversion parameter by bundle calibration or analytical calibration.Finally,a experiment is discussed to verify accuracy of the method. |
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| Keywords: | control points transformation parameter elements of exterior orientation calibration of computer |
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