| 数码相机的畸变差检测研究 |
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| 引用本文： | 林宗坚, 崔红霞, 孙杰, 刘丽. 数码相机的畸变差检测研究[J]. 武汉大学学报 ( 信息科学版), 2005, 30(2): 122-125. |
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| 作者姓名： | 林宗坚 崔红霞 孙杰 刘丽 |
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| 作者单位： | 1中国测绘科学研究院,北京市海淀区北太平路16号,100039;2武汉大学遥感信息工程学院,武汉市珞喻路129号,430079;中国测绘科学研究院,北京市海淀区北太平路16号,100039;3武汉大学资源与环境科学学院,武汉市珞喻路129号,430079 |
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| 基金项目： | 国土资源部重点科技资助项目(991017) |
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| 摘 要： | 提出了一种检测面阵CCD数码相机畸变差的方法。首先利用标准三维检校场测定面阵CCD数码相 机的内方位元素和系统畸变系数,然后依据投影几何中空间直线经中心投影变换后仍是直线的原理,提出了 对面阵CCD数码相机随机畸变的检测和改正方法。利用该方法对UAVRS Ⅱ系统中的面阵数码相机的畸变 进行了检校,获取了满意的结果。
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| 关 键 词： | 相机检校 畸变 附加参数 边缘检测 |
| 文章编号： | 1671-8860(2005)02-0122-04 |
| 收稿时间： | 2004-11-17 |
| 修稿时间： | 2004-11-17 |
Research on the Digital Camera Distortion Calibration |
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| LIN Zongjian, CUI Hongxia, SUN Jie, LIU Li. Research on the Digital Camera Distortion Calibration[J]. Geomatics and Information Science of Wuhan University, 2005, 30(2): 122-125. |
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| Authors: | LIN Zongjian Cui Hongxia SUN Jie LIU Li |
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| Affiliation: | 1Chinese Academy of Surveying and Mapping, 16 Beitaiping Road, Beijing 100039,China2 School of Remote Sensing and Information Engineering , Wuhan University, 129 Luoyu Road, Wuhan 430079, China 3School of Resource and Environment Science, Wuhan University,129 Luoyu Road, Wuhan 430079, China |
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| Abstract: | In this paper, an approach is presented to calibrate the distortion of CCD array digital cameras. Firstly, we use standard 3D calibration objects to determine the internal geometric and optical camera’s characteristics. Secondly, according to the principle that the projection of every line in space onto the camera is still a line if a camera follows the pinhole model, we propose a new method for calibrating the random distortion with good precision. Finally,we apply the approach to the calibrating process of the digital camera of UAVRS-Ⅱ system. Experiment results indicate that this kind of calibration method have reached successful test effect. |
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| Keywords: | camera calibration distortion APs(additional parameter’s) edge detection |
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