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椭圆拟合的圆环模板摄像机标定 被引量：8

Camera calibration based on the circular pattern and ellipse fitting
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摘要 结合平面模板和一维标定物摄像机标定方法的优点,提出了一种新的基于椭圆拟合的圆环模板摄像机标定方法.该方法设计了一种新的圆环模板,只需要3副模板图像即可标定摄像机;通过引入椭圆拟合精确定位圆环模板特征点,利用非线性优化进一步提高了摄像机的标定精度.仿真实验结果表明,该方法精确度高、鲁棒性强,通过在真实图像上的实验,验证了该算法的性能. A novel camera calibration method hased on the circular pattern and ellipse fitting is proposed, which combines the advantages of camera calibration based on the plantar pattern and one dimensional object. The proposed method designs a new circular pattern, which needs three images of the pattern to calibrate the camera. Ellipse fitting is introduced to locate the feature points in the circular pattern precisely and nonlinear optimization is utilized, and thus the calibration precision has been improved significantly. Experimental results for synthetic data show that the proposed strategy is both accurate and robust. Experimental results for real images prove the performance of the proposed algorithm.
作者 李龙 何明一 李娜
机构地区 西北工业大学电子信息学院 西安电子科技大学通信工程学院
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2010年第6期1148-1154,共7页 Journal of Xidian University
基金 国家自然科学基金资助项目(60736007)
关键词 摄像机标定 圆环模板 椭圆拟合 非线性优化 camera calibration circular pattern ellipse fitting nonlinear optimization
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献15

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二级参考文献19

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共引文献43

同被引文献47

  • 1邹益民,汪渤.一种基于最小二乘的不完整椭圆拟合算法[J].仪器仪表学报,2006,27(7):808-812. 被引量：62
  • 2侯慧杰,白剑,杨国光.全景环形透镜二维平面成像展开算法研究[J].光子学报,2006,35(11):1686-1688. 被引量：8
  • 3Hartley R, Zisserman A. Multiple View Geometry in Computer Vision [M]. 2nd Ed. Cambridge: Cambridge University Press, 2004.
  • 4Zhang H, Wong K, Zhang G Q. Camera Calibration from Images of Spheres [J]. IEEE Trans on Pattern Analysis and Machine Intelligence, 2007, 29(3) : 499 -503.
  • 5Ying X, Zha H. Geometric Interpretations of the Relation between the Image of the Absolute Conic and Sphere Images [J]. IEEE Trans on Pattern Anatysis and Machine Intelligence, 2006, 28(12): 2031-2036.
  • 6Wong K K, Zhang G, Chen Z. A Stratified Approach for Camera Calibration Using Spheres [J]. IEEE Trans on Image Processing, 2011, 20(2): 305-316.
  • 7Lu Y, Payandeh S. On the Sensitivity Analysis of Camera Calibration from Images of Spheres [J]. Computer Vision and Image Understanding, 2010, 114(1) : 8-20.
  • 8Shen E, Hornsey R. Multi-Camera Network Calibration with a Non-Planar Target [J]. IEEE Sensors Journal, 2011, 11 (10) : 2356-2364.
  • 9Jia J, Jiang G, Wu C K, et al. Accurate Positioning Using a Sphere in Single Views[J]. Electronics Letters, 2011, 47 (21) : 1175-1176.
  • 10Zhang Z Y. A Flexible New Technique for Camera Calibration[J]. IEEE Trans on Pattern Analysis and Machine Intelligence, 2000, 22(11): 1330-1334.

引证文献8

二级引证文献49

西安电子科技大学学报
2010年 第6期

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