图 5.
钢珠点投影中心坐标受高斯扰动对几何参数影响
Effect of Gaussian perturbation on geometric parameters of the projection center coordinates of the steel ball point. A: Magnitude of the deviation from 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 2D projection coordinates of the bead point. B: Two rotation angles η and Φ angle of the detector with different Gaussian perturbations added to the 2D projection coordinates of the bead point.