Table 2.

Performance metrics of our approach for varying shots at 5 degree.

Number of Shots	2	4	8	16	32	64	128
Peak signal to noise ratio (PSNR)	31.82 ± 2.23	31.92 ± 2.55	31.55 ± 1.89	31.57 ± 2.21	31.93 ± 1.92	32.02 ± 2.08	32.08 ± 1.76
Structural similarity index (SSIM)	0.95 ± 0.057	0.96 ± 0.053	0.96 ± 0.048	0.96 ± 0.045	0.96 ± 0.043	0.96 ± 0.041	0.96 ± 0.042
Artifact power (AP)	4.52 × 10−3 ± 0.29°× 10−3	4.42 × 10−3 ± 0.26 × 10−3	4.32 × 10−3 ± 0.25 × 10−3	4.13 × 10−3 ± 0.18 × 10−3	3.56 × 10−3 ± 0.18 × 10−3	3.59 × 10−3 ± 0.23 × 10−3	3.46 × 10−3 ± 0.19 × 10−3