A new easy camera calibration technique based on circular points
A new easy camera calibration technique based on circular points
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DOI：
10.1016/s0031-3203(02)00225-x
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发表时间：
2003-05-01
影响因子：
8
通讯作者：
Hu, ZY
中科院分区：
文献类型：
--
作者：
Meng, XQ;Hu, ZY
受张教授对柔性标定技术研究的启发，提出了一种新的基于圆点的摄像机标定方法。该技术只需要摄像机在几个(至少三个)不同的未知方向上观测一个新设计的平面标定图案(以下称为模型平面)，其中包括一个圆和通过该圆中心的一束线，然后可以线性确定所有五个内在参数。新技术的主要优点是不需要知道模型平面上的任何度量测量，也不需要知道模型平面上的点与图像上的点之间的对应关系，因此整个标定过程变得非常简单。这项建议的技术对那些不熟悉计算机视觉的人特别有用。用模拟数据和真实图像进行的实验表明，我们的新方法是稳健和准确的。(C)2002年模式识别学会。爱思唯尔科学有限公司出版。版权所有。
Inspired by Zhang's work on flexible calibration technique, a new easy technique for calibrating a camera based on circular points is proposed. The proposed technique only requires the camera to observe a newly designed planar calibration pattern (referred to as the model plane hereinafter) which includes a circle and a pencil of lines passing through the circle's center, at a few (at least three) different unknown orientations, then all the five intrinsic parameters can be determined linearly. The main advantage of our new technique is that it needs to know neither any metric measurement on the model plane, nor the correspondences between points on the model plane and image ones, hence the whole calibration process becomes extremely simple. The proposed technique is particularly useful for those people who are not familiar with computer vision. Experiments with simulated data as well as with real images show that our new technique is robust and accurate. (C) 2002 Pattern Recognition Society. Published by Elsevier Science Ltd. All rights reserved.