摘要
根椐Tsai两步标定方法,在Matlab中首先运用直接线性变换法(DLT)对摄像机参数进行估计,然后以线性参数为初始值,运用非线性优化方法对摄像机参数进行优化。并对摄像机参数标定过程中的畸变模型进行分析,主要分析了透镜的径向和切向畸变分量。最后根据标定的摄像机参数,实现了摄像机畸变模型可视化。
According to Tsai＇s two-step method of calibration, the linear parameters are estimated by using direct linear transformation （DLT）, and then the nonlinear method is applied to optimize camera parameters with the initial parameters obtained from previous step. The distortion model in process of camera calibration is analyzed, and the distortion is decomposed to the radial and tangential distortion. Finally the distortion model is visualized based on the calibration of camera parameters.
出处
《工程图学学报》
CSCD
北大核心
2009年第3期121-125,共5页
Journal of Engineering Graphics
基金
江苏大学高级专业人才科研启动基金资助项目(05JDG055)
关键词
计算机应用
模型可视化
两步标定
畸变模型
computer application
model visualization
two-step calibration
distortion model
