基于平行直线的摄像机标定方法

马长正; 董明利; 祝连庆; 吕乃光

基于平行直线的摄像机标定方法

北京信息科技大学光电信息与通信工程学院, 北京 100192

基金项目: 国家自然科学基金资助项目(50675015, 50475176);北京市属市管高等学校人才强教计划资助项目(PXM2007_014224_044674)

详细信息

作者简介:
马长正(1982 -),男,安徽阜阳人,硕士生, mcz8315@yahoo.cn.

中图分类号: TP 391.4
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- 文章访问数: 3325
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- 被引次数: 0
出版历程
- 收稿日期: 2008-10-07
- 网络出版日期: 2009-10-31

Camera calibration with parallel lines

School of Optoelectronic Information and Telecommunication Engineering, Beijing Information Science and Technology University, Beijing 100192, China

摘要

摘要: 针对视觉测量中摄像机镜头畸变对精度的影响问题,提出一种基于平行直线求解镜头畸变系数及摄像机标定的方法.考虑到空间直线在理想摄像机模型下的成像仍然是直线的特点,根据畸变对直线的影响,利用径向畸变的数学模型和参数分解的方法对径向畸变系数进行线性求解;仅存在切向畸变的点和理想点到主点距离相等,采用非线性拟合直线确定理想点的方法求解出切向畸变系数.对标靶点进行畸变校正,计算出摄像机内外方位参数.实验结果表明,该方法得到了准确可靠的标定参数.
- 视觉测量 /
- 畸变系数 /
- 摄像机标定
Abstract: To solve precision problem of the camera lens distortion in vision measurement, a new method for nonlinear distortion correction and camera calibration was presented. Considering the fact that a camera followed the perspective camera model if and only if the projection of every 3D line in space onto the camera plane was a line, the coefficients of radial distortion were calculated with the radial anamorphic model and linear characteristic. The distances from the points with tangential distortion and the ideal points to the principal point were equivalent, and the coefficients of tangential distortion were obtained with the ideal points gotten by imitating the straight line. The distortion coefficients were used to correct the distortion points, and the parameters of the camera were estimated. The experimental results show that the accurate and reliable calibration parameters were obtained.
- vision measurement /
- distortion coefficient /
- camera calibration

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[1] 冯文灏.关于近景摄影机检校的几个问题[J].测绘通报,2000(10):1-3 Feng Wenhao. On calibration of close-range cameras [J]. Bulletin of Surveying and Mapping, 2000(10):1-3(in Chinese) [2] 孟晓桥,胡占义.摄像机自标定方法的研究与进展[J].自动化学报,2003(1):110-124 Meng Xiaoqiao, Hu Zhanyi. Recent progress in camera self-calibration [J]. Acta Automatica Sinica,2003(1):110-124(in Chinese) [3] Abdel Aziz Y I, Karara H M. Direct linear transformation from comparator coordinates into object space coordinates in close-range photogrammetry //Proc of the Symposium on Close-Range Photogrammetry. Falls Church, VA: American Society of Photogrammetry,1971:1-18 [4] Triggs Bill, Mclauchlan Peter, Hartley Richard. Bundle adjustment—a modern synthesis Proc of the Int Workshop on Vision Algorithms: Theory and Practice. Freiburg, Germany: Springer-Verlag,1999:298-372 [5] Weng Juyang, Paul C, Marc H. Camera calibration with distortion models and accuracy evaluation [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1992,14(10):965-980 [6] Zhang Z. A flexible new technique for camera calibration [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence,2000,22(11):1330-1334 [7] Tsai R Y. An efficient and accurate camera calibration technique for 3D machine vision Proc IEEE conference on Computer Vision and Pattern Recognition. Miami Beach, Florida:1986:346-373 [8] Tsai R Y. A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses [J]. IEEE, Robotics Automat,1987(4):323-344 [9] Frederic D, Oliview F. Straight lines have to be straight_automation calibration and removal of distortion from scenes of structured environments [J]. Machine Vision and Applications, 2001,23:14-24 [10] Yang Yongyue, Deng Shanxi, Wang Xunsi. Correction of anamorphic vision image with perspective lines[J]. Journal of Applied Sciences,2006,24(6):628-632 [11] 王亚东,丁明跃,彭嘉雄.一种基于摄像机模型的畸变图像校正方法[J].自动化学报,1997,23(5):717-720 Wang Yadong, Ding Mingyue, Peng Jiaxiong. Correction of distortion image based on camera model [J]. Acta Automatic Sinica,1997,23(5):717-720(in Chinese) [12] Zhang Yanzhen, Ou Zongying, Xue Bindang. Error correction method based on slope for camera radial distortion [J]. Mini-Micro System,2002,23(5):625-627 [13] Salci J, Armangue X, Batlle J. A comparative review of camera calibrating methods with accuracy evaluation [J]. Pattern Recognition,2002,35(7):1617-1365

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