Table 1.

Comparisons of the 2 s projections and the CNN enhanced projections with 30 s projections.

Angles (degree)	SSIM		PSNR(dB)
	P2/P30	Pe/P30	P2/P30	Pe/P30
0 (validating)	0.655	0.897	22.302	24.377
30 (training)	0.768	0.937	25.124	31.828
60 (validating)	0.720	0.938	27.381	34.568
90 (validating)	0.518	0.892	14.900	18.282
120 (training)	0.415	0.853	15.439	18.320
150 (validating)	0.464	0.848	12.889	25.414