Figure 3
Schematics indicate the 6D tomography reconstruction process. (a) Transformation between the spherical coordinate system and the Cartesian coordinate system (CSYS). (b) A schematic representation of the 2D matrices in the X-ray path and the sum of those matrices at the same position (r, c). (c) A matrix-transformation process is performed on to get to fulfill rotational invariance. (d) The 2D intensity map [ ] is then reshaped into a list of nodes with intensity indicated as , with each node assigned a 2D index of (r, c). (e) A projection with M raster scanning points will generate intensity maps for M columns. (f) Sinograms of each specific node (r0, c0) on the retrieved and transformed maps are extracted for the next paralleled reconstruction step. (g) The nodes on the reconstructed 2D intensity maps [ ] are used to assemble the final 3D spheres [ ] for each voxel. |