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. Author manuscript; available in PMC: 2020 Aug 2.
Published in final edited form as: IEEE Trans Med Imaging. 2015 Mar 20;34(9):1901–13. doi: 10.1109/TMI.2015.2415453

Fig. 3.

Fig. 3

2D slices Ik are arranged in a volumetric 3D computation grid to maximize SIMD occupancy (left). The grid spans the maximum slice size in x and y. Smaller slices are filled with zeros to reach the required grid size in x and y. Operations on the reconstruction volume are performed in a volume X sized grid.