CT Image Reconstruction from Sparse Projections Using Adaptive TpV Regularization

Figure 3

The images reconstructed by different reconstruction algorithms from the noise-free and noisy data. ((a)–(e)) Reconstructed images from noise-free data: (a) image reconstructed by ART, (b) image reconstructed by ART-TV, (c) image reconstructed by ART-TpV, (d) image reconstructed by ART-ATpV, and (e) image reconstructed by ART-ATpV-FISTA; ((f)–(j)) reconstructed images from noisy data: (f) image reconstructed by ART, (g) image reconstructed by ART-TV, (h) image reconstructed by ART-TpV, (i) image reconstructed by ART-ATpV, and (j) image reconstructed by ART-ATpV-FISTA.

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