Table 2 Different types of artifacts
From: An improved method for the removal of ring artifacts in high resolution CT imaging
| Â | Type-1 | Type-2 | Type-3 |
|---|---|---|---|
Origin of artifact | completely damaged detector pixel and/or damaged scintillator | mis-calibrated detector pixel having time independent beam intensity | mis-calibrated detector pixel having time dependent beam intensity |
Resemblance with response of adjacent non-defective pixel | -ve | +ve | +ve |
Classifying criterion | repetitive occurrences of a specific value | constant shift from non-defective response | varying shift from non-defective response |
Correction technique | Inpainting | DC shift | Interpolation |