A flexible new technique for camera calibration
A flexible new technique for camera calibration
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DOI：
10.1109/34.888718
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发表时间：
2000-11-01
影响因子：
23.6
通讯作者：
Zhang, ZY
中科院分区：
文献类型：
--
作者：
Zhang, ZY
我们提出了一种灵活的新技术，可以轻松地校准相机。它只需要相机观察在几个（至少两个）不同方向上显示的平面图案。照相机或平面图案都可以自由移动。不需要知道运动。径向透镜畸变被建模。该方法首先给出一个封闭解，然后基于最大似然准则进行非线性优化。用计算机模拟和真实的数据对所提出的方法进行了检验，取得了很好的效果。与传统的使用两个或三个正交平面的昂贵设备的技术相比，所提出的技术易于使用和灵活。它将3D计算机视觉从实验室环境推进到真实的世界使用又向前迈进了一步。相应的软件可从作者的网页上获得。
We propose a flexible new technique to easily calibrate a camera. It only requires the camera to observe a planar pattern shown at a few (at Least two) different orientations. Either the camera or the planar pattern can be freely moved. The motion need not be known. Radial lens distortion is modeled. The proposed procedure consists of a closed-form solution, followed by a nonlinear refinement based on the maximum likelihood criterion. Both computer simulation and real data have been used to test the proposed technique and very good results have been obtained. Compared with classical techniques which use expensive equipment such as two or three orthogonal planes, the proposed technique is easy to use and flexible. it advances 3D computer vision one more step from laboratory environments to real world use. The corresponding software is available from the author's Web page.