Prior Image Guided Undersampled Dual Energy Reconstruction with Piecewise Polynomial Function Constraint

Table 3

The scan geometry for the dental phantom.

Parameter	Value
Source to center distance	50 cm
Source to detector distance	80 cm
Total width of detector	30 cm
Number of detector bins	960
Reconstruction resolution	512×512
Reconstruction size	19.2 cm × 19.2 cm