TABLE. 1.

Computation time ($\tau$) and correlation coefficient ($\rho$) for numerical studies

View	Spherical Geometry								View	Planar Geometry
	TR		UBP		MBP		MF-LSQR			FFT		TR		UBP		MBP		MF-LSQR
	$\rho$	$\tau \mathrm{s}$	$\rho$	$\tau (\mathrm{s})$	$\rho$	$\tau (\mathrm{s})$	$\rho$	$\tau (\mathrm{s})$		$\rho$	$\tau \mathrm{s}$	$\rho$	$\tau (\mathrm{s})$	$\rho$	$\tau (\mathrm{s})$	$\rho$	$\tau (\mathrm{s})$	$\rho$	$\tau (\mathrm{s})$
S1	0.59	952	0.78	4.6	0.83	81	0.92	873	P1	0.58	13	0.20	2714	0.66	8.9	0.74	173	0.82	1971
S2	0.30	937	0.68	2.5	0.74	40	0.90	436	P2	0.37	2.3	0.41	763	0.44	1.7	0.46	39	0.52	570
S3	0.25	944	0.48	1.5	0.56	21	0.79	236