This paper discusses the correction of distortion by theoretical analyses and experimental investigations. Experimeental results are very satisfactory.

本文通过理论分析与实验对畸变进行了校正，收到了良好的效果。

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It is very important for correction of distortion of these images to find focus of infection fast and correctly and diagnose the cases quantitatively and qualitatively.

畸变的校正对于快速发现、准确定位病灶，定量、定性分析病情具有重要意义。

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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。

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To maintain an accurate image, the XV-Z15000 includes Keystone Correction, which corrects spherical, cylindrical and trapezoidal distortion of an image on a flat screen.

ENGADGET: Sharp shows off the XV-Z15000 1080p projector