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摄象机参数高精度求解方法
引用本文:段发阶 张健新. 摄象机参数高精度求解方法[J]. 光电工程, 1998, 25(1): 61-66
作者姓名:段发阶 张健新
作者单位:天津大学精密测试技术及仪器国家重点实验室
摘    要:提出了一种新的高精度的摄象机参数的求解方法,文章利用透视变换理论建立了摄象机数学模型,模型中考虑了摄象机镜头的径向畸变和切向畸变,首先利用牛顿-高斯非线性搜索方法求争摄象机畸变系数和一个中间矩阵,然后再从中间矩阵中分离出其它模型参数;

关 键 词:摄象机 镜头 畸变 参数最优化 透视变换

A High Precision Method for Getting The Camera Parameters
Duan Fajie,Zhang Jianxin,Ye Shenghua. A High Precision Method for Getting The Camera Parameters[J]. Opto-Electronic Engineering, 1998, 25(1): 61-66
Authors:Duan Fajie  Zhang Jianxin  Ye Shenghua
Abstract:A novel high precision method for getting the parameters of a camera is proposed in the paper.The mathematical model of the camera is set up by use of the perspective transfer theory.The radial and tangential distortions of the camera lens are fully considered.First the distortion coefficient of the camera and an intermediate matrix are derived by use of Newton Gaussian nonlinear searching method.Then the other model parameters can be separated from the intermediate matrix.In order to solve the initial searching value,the intermediate matrix is obtained by use of the linearized method or the simple iterative method.Thus the nonlinear search ing speed can be sped up and the nonlinear searching accuracy can be improved.The quick speed and high precision obtaining method for the camera parameters have been proved in theory and in practice.
Keywords:Cameras  Lenses  Distortion  Parameter optimization.  
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