一种利用单幅图像的现场摄像机自标定方法
A Live Camera Calibration Method Using Single Image
摘要: 针对现场摄像机工作特点对标定方法的要求，设计了利用单幅“田”字形标定物图像的摄像机标定方法。基于灭点理论求解出空间两组平行线组在成像平面上的投影所确定的两个灭点，并根据灭点的性质求解出与两组平行线组相互正交的另一组平行线组所确定的灭点，进一步得到内参数矩阵和旋转矩阵。基于上述结果，通过做世界坐标系原点投影点的辅助线段求解平移向量。使用matlab软件编写本文方法的标定程序，做50组实验，并与张正友标定法进行了对比。实验验证了本方法的准确性和稳定性，证明了本文标定方法快速简便。
Abstract: In view of the requirements of the live camera work characteristics on the calibration method, the camera calibration method for the image of a single “Tian” glyph is designed. Based on the van-ishing point theory, the two vanishing points identified by the projection line of two groups of parallel lines in the imaging plane are solved. According to the nature of the vanishing point, the vanishing point determined by another set of parallel lines that are orthogonal to the two groups of parallel lines is solved, the parameter matrix and the rotation matrix in further. Based on the above results, the translation vector is solved by the auxiliary line segment of the world coordinate system origin projection point. Matlab software was used to write the calibration procedure of the method in this paper, 50 groups of experiments were done, and compared with Zhang zhengyou calibration method. The accuracy and stability of this method have been verified by experiments.
文章引用：杨麒, 李天伟, 唐露露, 黄谦. 一种利用单幅图像的现场摄像机自标定方法[J]. 图像与信号处理, 2018, 7(3): 142-150. https://doi.org/10.12677/JISP.2018.73017

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