Few-View Prereconstruction Guided Tube Current Modulation Strategy Based on the Signal-to-Noise Ratio of the Sinogram

Table 1

The geometrical configurations in the numerical simulations.

Scanning configuration parameters	Values
Trajectory radius (cm)	40.0
Object radius (cm)	22.5
Source-to-detector distance (cm)	70.0
Projection number per circle	1024
Linear array detector size (cm)	76.8
Detector unit number	512
Reconstructed image dimensions