Creation of a set of sinograms and the subsequent tomogram slices via back projection

This animation takes 34 tomogram slices through a human skull, taken from the public domain wikipedia source: _a_normal_brain_(case_2) and generates the respective sinograms. The central image shows a rotating x-ray transmission image of a head. The yellow bar in the central image scans the height positions of the 34 sinograms, which are accordingly highlighted by a yellow frame. Once the sinograms are complete, a set of slices produced by back projection are generated. In this part of the movie, the final slices are stacked one on top of the other to produce the central 3-dimensional image of the sampled head. The z-direction is extended in order to better visualize each slice.