Calibration method for binocular vision based on matching synthetic images of concentric circles

被引：2
作者：
Hou, Junjie [1 ]
Wei, Xinguo [1 ]
Sun, Junhua [1 ]
机构：
[1] Key Laboratory for Precision Optical-Mechanical Technology, Ministry of Education, Beihang University
来源：
Guangxue Xuebao/Acta Optica Sinica | 2012年 / 32卷 / 03期
关键词：
Binocular vision sensor; Calibration; Concentric circle; Machine vision; Synthetic image;
D O I：
10.3788/AOS201232.0315003
中图分类号：
学科分类号：
摘要：
The mathematical model of a binocular vision sensor is analyzed. A novel calibration method for binocular vision sensor based on matching the synthetic images of concentric circles is proposed. The target of concentric circles is randomly placed in the field of vision sensor for several times and the images of target are acquired by two cameras. The synthetic images are calculated through the model of camera and the known position of concentric circles in the target plane. By matching the synthetic images and observed images, the coordinate of the centre circles in image plane is located with optimization. Then, based on the image coordinate of the concentric circles in two cameras and the constraint of binocular vision, the parameters of binocular vision sensor are optimized by Levenberg-Marquart method. Based on the calibration proposed by Z. Y. Zhang, the whole information of the images is optimized. The experiment shows that the accuracy of calibration is improved.
引用
收藏
相关论文
共 15 条
  • [1] Xiang S., Su G., Chen J., Et al., Brick stack anomaly detection and recognition based on machine vision, Acta Optica Sinica, 31, 7, (2011)
  • [2] Lin H., Liu B., Zhang Y., Three-dimensional reconstruction method of large axisymmetric forge workpieces, Acta Optica Sinica, 31, 7, (2011)
  • [3] Zhang Q., Wang Z., Chi J., Et al., Calibration for gaze tracking system based on stereo cameras and plane mirror, Acta Optica Sinica, 31, 4, (2011)
  • [4] Tsai R.Y., A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses, IEEE Trans. Robotics and Automation, 3, 4, pp. 323-344, (1987)
  • [5] Zhang Z., A flexible new technique for camera calibration, IEEE Trans. Pattern Analysis and Machine Intelligence, 22, 11, pp. 1330-1334, (2000)
  • [6] Zhu J., Li X., Xu Y., Camera calibration technique based on active vision, Acta Optica Sinica, 30, 5, pp. 1297-1303, (2010)
  • [7] Huo J., Yang W., Yang M., A self-calibration technique based on the geometry property of the vanish point, Acta Optica Sinica, 30, 2, pp. 465-472, (2010)
  • [8] Heikkila J., Moment and curvature preserving technique for accurate ellipse boundary detection, Proc. 14th Int'l Conf. Pattern Recognition, pp. 734-737, (1998)
  • [9] Heikkila J., Geometric camera calibration using circular control points, IEEE Trans. Pattern Analysis and Machine Intelligence, 22, 10, pp. 1066-1077, (2000)
  • [10] Zhang G., Machine Versim, (2005)
12