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. 2012 Jul 31;39(8):5145–5156. doi: 10.1118/1.4736420

Figure 1.

Figure 1

Schematic diagram for cascaded systems analysis of reconstruction-based DE-CBCT. The 2D projection imaging chain (LE or HE) is characterized by seven stages ranging from x-ray interaction in the detector to 2D sampling and readout with additive electronic noise. The 3D reconstruction process is characterized by six algorithmic steps ranging from the logarithm to 3D backprojection and sampling. The DE decomposition step indicated by w combines the low- and high-energy reconstruction NPS (SLE and SHE) into the DE NPS (SDE).