Computer Vision, Automated Inspection, Radon Transform, Computed Tomography, Fourier Transform.
by horizontally stacking the projections of a BGA, at 256 discrete angles, from -π/2 to π/2: Figure 4: The BGA plane sinogram. Image by the author. We call such an image a sinogram because a point in the original density image creates a sinusoid in the image of stacked slices. What do you do now?