| 利用图像畸变对称性实现相机中心位置标定 |
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| 引用本文： | 王栋,朱明. 利用图像畸变对称性实现相机中心位置标定[J]. 电子器件, 2007, 30(3): 1003-1005 |
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| 作者姓名： | 王栋 朱明 |
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| 作者单位： | 1. 中国科学院研究生院中国科学院;长春光学精密机械与物理研究所,长春130033
2. 中国科学院长春光学精密机械与物理研究所,长春130033 |
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| 摘 要： | 分析了图像的畸变特征,提出一种新的相机中心标定的方法.在提出的四点假设前提下,认为图像畸变有中心对称的特点.采用高斯曲线拟合有畸变的直线,多条平行直线的畸变拟合高斯曲线的顶点连线将经过图像中心.通过对多簇不平行直线的畸变曲线拟合,可获得多条过图像中心的直线,联合求解得到图像的中心位置.这种直接获得图像中心的方法,无须已知任何外部参数,算法简单且计算复杂度低,结果的稳定性好,在实验中取得良好的效果.
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| 关 键 词： | 相机校正 相机中心 畸变对称性 曲线拟合 |
| 文章编号： | 1005-9490（2007）03-1003-03 |
| 修稿时间： | 2006-05-29 |
Camera''''s Image Center Measurement Method Based of Distorted Symmetry |
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| WANG Dong,ZHU Ming. Camera''''s Image Center Measurement Method Based of Distorted Symmetry[J]. Journal of Electron Devices, 2007, 30(3): 1003-1005 |
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| Authors: | WANG Dong ZHU Ming |
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| Affiliation: | 1. Graduate School of the Chinese Academy of Science ; 2. Changchun Institute of Optics Fine Mechanics and Physics , Chinese Academy of Sciences, Changchun 130033 , China |
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| Abstract: | A new camera's image center measurement method is proposed after analyzing distortion speciality.According to four supposals,image distortion is symmetric about image center.First,using Gauss curves to fit straight lines.These vertices of fitting curves of several parallel straight lines and image center lie in a line.So,several groups of non-parallel straight lines determine several lines of passing image center,which crossing is the image center point.The method is a direct way to find image center,without any exterior parameters.It's simple and steady.A good result has been obtained. |
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| Keywords: | camera calibration image center distorted symmetry curves fitting |
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