微焦点 X射线成像系统由于被重新安装以及初始化 ,导致系统参数读数与实际值之间存在偏量。给出了测量这些偏量值的基本原理和方法 ,并通过实验求出偏量值。由于图像增强器与图像获取装置本身固有特点以及非线性获取成像 ,投影图像存在几何畸变。讨论了图像几何畸变校正的基本原理 ,并给出具体步骤以及校正后的图像 The microfocus X-ray imaging system is reset and initialized, resulting in an offset between the system parameter reading and the actual value. The basic principle and method of measuring these offset values ​​are given, and the offset value is obtained experimentally. Due to the inherent characteristics of the image intensifier and image acquisition device as well as non-linear acquisition imaging, the projection image has geometric distortion. The basic principle of image geometric distortion correction is discussed, and the specific steps and the corrected image are given