一种光学成像垂轴几何畸变校正方法

光学成像系统非线性几何畸变的校正仍是一个未能很好解决的课题，一些方法还不能很好地实用。本文对成像系统主要因镜头的失常导致的非线性几何畸变，分析了成像过程。提出一种以径向几何畸变为主的非线性几何畸变模型。依据此模型，提出一种通用的校正方法，应用计算机处理，可对实际的非线性几何畸变图像进行校正。文中用所提出的方法对实际成像的畸变进行了校正，给出了校正实验结果，校正效果良好，有一定的实验价值。

A method correcting vertical axis geometry distortion of optical image

The correction of nonliner geometry distortion of optically imaging system is the problem to have been solved. Some methods on the correction have not succeed in reality application. In this paper, we put forward a distortion model in which radial geometry distortion is primary factor for imaging system existing nonliner geometry distortion because of lens odd. According to the model, we present a general correcting method. Using this method and computer, we can correct reality nonliner geometry distortion. In this paper, using the method, we have corrected real image distortion and have given correcting results. The correcting results are good and the method has practical value.