图 4.
钢珠点空间中心坐标受高斯扰动对几何参数影响
Effect of Gaussian perturbation on the geometric parameters of the spatial center coordinates of the steel ball point. A: Magnitude of the deviation of the projection position of the source (u0, v0), the vertical distance SDD from the source to the detector and the distance SAD from the source to the center of rotation with different Gaussian perturbations added to the 3D spatial coordinates of the steel ball point. B: Two rotation angles η and Φ of the detector with different Gaussian perturbations added to the 3D spatial coordinates of the steel ball point.