The method USES the model of radial nonlinear distortion with the symmetry of optical axis to obtain correction coefficients of the optical lens, and then corrects the distortion image.
该方法利用与光轴对称的径向畸变数学模型求出光学镜头的校正系数，对畸变图像进行校正。
In addition to using the aberration correction theory, optical distortion can be corrected with the digital image processing technology.
光学系统的畸变除了利用像差理论来实现校正外，还可以利用数字图像处理技术来进行校正。
Furthermore, the selection of the double telecentric optical system ensures the correction of the trapezoidal distortion introduced by the tilt object surface.
选择双远心光学结构，便于对倾斜物面所产生的梯形畸变进行矫正。
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