The Build lens node can be used to construct a lens model from multiple images of a calibration grid, such as a checker-board pattern, taken at different camera focal lengths.
构建透镜节点可以用来构造一个透镜模型从多个图像的校准网格，如棋盘式格局，取不同的相机焦距。
2
A new approach for lens distortion calibration is presented in this paper, which utilizes parallel lines.
本文提出了一种基于空间一组平行线标定镜头畸变的简便方法。
3
The true value diagrams are used to do the camera calibration. This method takes nonlinear distortion of the lens.