| 室内控制场数码相机检校应用于通用航空摄影测量的可行性研究 |
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| 引用本文： | 李伟,任超峰.室内控制场数码相机检校应用于通用航空摄影测量的可行性研究[J].测绘工程,2012,21(4):49-52. |
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| 作者姓名： | 李伟 任超峰 |
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| 作者单位： | 1. 天津市测绘院,天津,300191
2. 中国测绘科学研究院,北京,100039 |
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| 摘 要： | 非量测数码相机已广泛应用于计算机视觉、摄影测量等领域,但必须对其进行内定向和构像畸变的校正。常用的检校方法主要有室外检校法和室内检校法两类,其中利用室外三维控制场进行数码相机检校是目前较为成熟的做法,而室内三维控制场检校精度能否达到常规比例尺航空摄影要求尚未进行有效验证。通过论述一整套室内三维控制场相机检校方法,并对比分析两种检校结果表明,室内三维控制场检校精度还无法满足通用航摄精度要求。
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| 关 键 词： | 控制场 最小二乘 相机检校 直接线性变换 |
Research on the feasibility of non-metric digital camera calibration in indoor control field applies to general aero photography |
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| LI Wei
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REN Chao-feng.Research on the feasibility of non-metric digital camera calibration in indoor control field applies to general aero photography[J].Engineering of Surveying and Mapping,2012,21(4):49-52. |
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| Authors: | LI Wei REN Chao-feng |
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| Institution: | 1.Tianjin Institute of Surveying and Mapping,Tianjin 300191,China;2.Chinese Academy of Surveying and Mapping,Beijing 100039,China) |
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| Abstract: | Non-metric digital camera has been widely used in the field of computer vision,photogrammetry and so on.Interior orientation and image distortion correction is necessary when we use non-metric digital camera.The calibration method contains two types of indoor and outdoor.Three-dimensional control field of the outdoor for digital camera calibration is the mature method.The precision of three-dimensional control field of the indoor used in the field of conventional aerial photography has not be verified.It discusses three-dimensional control field of the indoor camera calibration method and make a comparative analysis of two calibration results.The conclusion is the calibration precision of three-dimensional control field of indoor can not meet the general requirements of aero photography. |
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| Keywords: | control field least-squares procedure camera calibration DLT |
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