Table 1.

PSNRs (dB) of reconstructed images of shep-logan phantom

	160-view	90-view	30-view	18-view
FBP	20.35	18.36	15.68	13.14
L 1-norm	33.83	34.98	34.21	31.19
TV-GD	38.01	38.23	36.68	34.68
TV-L p(p = 0.8)	38.45	39.05	36.91	36.72
TV-L p(p = 0.5)	38.85	39.27	37.01	36.81