Accurate measurement of geometrical distortion of image display system with wide-angle objective lens is the precondition and key of digital distortion correction.

准确地测量含有广角耦合物镜的图像显示系统的几何畸变是实现图像显示系统几何畸变数字校正的前提和关键。

youdao

After the correction, the distortion of image display system is less than 0.4%. This result can meet the needs of the positioning and probability of the missile's scene matching guidance system.

校正后，图像显示系统的畸变小于0.4%，完全能够满足导弹景象匹配系统定位误差及定位概率的检测要求。

youdao

In this paper the distortion of image collimating system is analyzed, and then an on-line self-calibration method with double-frequency laser length measuring result as length datum is presented.

通过对图像瞄准系统中的畸变分析，提出以激光长度测量值作为长度基准的成像系统在线自标定方法。

youdao

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