摘要
摄像机标定的目的是确定摄像机的图像坐标系与物体空间中的三维参考坐标系之间的对应关系。研究非线性模型下摄像机标定两步法的算法实现,并提出用两步法在进行摄像机标定实验时对于算法初步进行的改进。即对于未标定图像在算法初步设定畸变系数初值来校正标定实验所提取的角点,通过实验标定摄像机参数并进行验证,实验表明可以降低重投影误差,使算法精度进一步提高。
The aim of camera calibration is to confirm the homologous relations between image reference frame and three- dimensional reference frame. In this paper, a two - stages camera calibration method based on the nonlinear model is researched,anti an improved Two - stages method is proposed for predicting corner locations. Both computer simulation and real data have been used to test the proposed technique and to get camera＇s parameter. The results show the proposed method is more accurate.
出处
《现代电子技术》
2008年第12期153-154,157,共3页
Modern Electronics Technique
关键词
非线性模型
摄像机标定
畸变系数
两步法
nonlinear model
camera calibration
distortion coefficient
two - stages camera calibration
