3D Analytic Cone-Beam Reconstruction for Multiaxial CT Acquisitions

Figure 5

Efficient TOM windowing: during the backprojection of each voxel and each view, it is decided if the projection of that voxel falls inside the TOM window and if not, the contribution from that view is discarded. 3 longitudinal sources are marked as 𝐴, 𝐵, and 𝐶.