首先，本论文通过分析平行束CT系统的理想成像关系，提出了一种适用于平行束CT系统几何失真校正的方法。
The main work can be summarized as follows: Firstly, by analyzing the ideal geometric relation in parallel CT system, the thesis presents a calibration method of geometric misalignment.
桶形失真直接影响了对图像的分析理解，为了得到比较完好的图像，对拍摄到的图像进行几何校正是十分必要的。
Through transforming pixels in the image, this paper adopts L multinomial address correction to realize barrel distortion correction of images.
实验证明，算法性能稳定、校正精度高、可以有效地校正大强度几何失真。
The experiments have demonstrated that this schema has stable performance, sound correction$…
最后针对临近空间大倾角失真遥感图像提出了一种分段多项式几何校正方法，取得了理想的校正精度。
Finally, for geometric correction of near space oblique remote sensing images, a piecewise polynomial geometric correction method is studied, and achieved the desired accuracy of calibration.
最后针对临近空间大倾角失真遥感图像提出了一种分段多项式几何校正方法，取得了理想的校正精度。
Finally, for geometric correction of near space oblique remote sensing images, a piecewise polynomial geometric correction method is studied, and achieved the desired accuracy of calibration.
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