CT Image Reconstruction from Sparse Projections Using Adaptive TpV Regularization

Figure 7

The reconstructed images by different algorithms from real head phantom projection data. (a) The original image, (b) the reconstructed image using ART, (c) the reconstructed image using ART-TV, (d) the reconstructed image using ART-TpV, (e) the reconstructed image using ART-ATpV, and (f) the reconstructed image using ART-ATpV-FISTA.

(a)

(b)

(c)

(d)

(e)

(f)