摘要
提出了一种新的高精度的摄象机光学参数及几何参数的标定方法，利用透视变换理论建立了摄象机数学模型，首先用牛顿高斯非线性搜索方法求解摄象机畸变系数和一个中间矩阵，然后从中间矩阵中分离出其它模型参数；为解决非线性搜索的初值问题，采用线性化方法、简单迭代法求得中间矩阵的初值。理论及实际应用表明，该标定方法速度快、精度高。
A new accurate calibrating technique for optical parameters and geometrical parameters of CCD camera is described. The lens distortion parameters and a 4×3 matrix are derived by Newton Gauss nonlinear searching method. Then other parameters of the model are resolved from the matrix. In order to get a fine initial guess for the matrix, a linear algorithm and a simple iteration method are introduced. This camera calibration technique is accurate with high speed proved theoretically and practically.
出处
《计量学报》
CSCD
北大核心
1997年第4期294-299,共6页
Acta Metrologica Sinica
关键词
摄象机
标定
光学参数
几何参数
Camera calibration
Optical parameters
Geometrical parameters
Perspective transformation
