【摘要】 针对光学元件加工误差、镜头光学畸变以及系统装调误差对折反射周视红外成像系统造成的成像误差问题,本文开展折反射周视红外成像系统标定的研究,在制作红外靶标的基础上研究了基于平面网格点的标定方法,具体包括基于形态学的特征点提取、系统参数选取、用雅克比迭代法求取目标函数的最小值。实验结果表明,本标定方法可以精确获得反射镜面型参数、径向及切向畸变参数和相机模型参数等10种内部参数,平移参数和旋转参数等7种外部参数,重投影误差控制在3个像素之内。本标定方法对成像位置的确定具有重要意义。更多还原

【Abstract】 To solve the systematic errors caused by lens machining errors,optical distortion and alignment errors,the calibration of catadioptric panoramic infrared imaging system is presented.Based on the fabrication of infrared target,the calibration method based on planar grid points is studied,including the extraction of feature points based on morphology,system parameter selection,and the minimum value of the objective function using Jacobi iteration method.Experimental results show that the calibration method can accurately obtain 10 internal parameters such as mirror surface parameter,radial and tangential distortion parameters and camera model parameters,and 7 external parameters such as translation parameters and rotation parameters.The reprojection error is controlled within 3 pixels,and this calibration method is important for the determination of the imaging position.更多还原