带切向畸变的模型可视化摄像机标定  

Camera Calibration for Model Visualization with Tangential Distortion

作　　者：华希俊[1] 夏乐春[1] 高福学[1] 薛城[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《工程图学学报》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)

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.

关 键 词：计算机应用 模型可视化 两步标定 畸变模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]