Table 2.
A priori image model | Precisea priori knowledge | Computational essence | Angular sampling rate | Current maturity | |
---|---|---|---|---|---|
THT-based interior tomography | Quite general | A subregion | Inversion of truncated Hilbert data | Normal | High |
CS-based interior tomography | Piecewise constant | Unnecessary | Minimization of total variation | Potentially low | Low |