Table 1.

Mean and standard deviation of the reconstructed μ_a and ${\mu }_s^{\prime }$ values in mm⁻¹ for the background and target with LM and GLS techniques using data with 1% noise. The spherical target had a diameter of 15 mm. One set of reconstructed images for the target in the center is presented in Fig. 3. The cylindrical target diameter was 15 mm and extended throughout the imaging domain in the z direction.

		Target		Target		Background
Methods	Shape	Position	μa	${\mu }_s^{\prime }$	μa	${\mu }_s^{\prime }$
Actual	⋯	⋯	0.01	1.0	0.02	2.0
LM	Spherical	(0,0,0)	0.0101±0.003	1.0079±0.0322	0.0104±0.0002	1.1259±0.0160
		(30,0,0)	0.0101±0.0006	1.0063±0.0500	0.0126±0.0009	1.4514±0.1152
	Cylindrical	(0,0)	0.0102±0.0010	1.0120±0.0874	0.0151±0.0012	1.4308±0.0854
		(30,0)	0.0101±0.006	1.0030±0.0663	0.0148±0.0015	1.8406±0.2470
GLS	Spherical	(0,0,0)	0.0101±0.0001	1.0100±0.0212	0.0122±0.0004	1.2903±0.0326
		(30,0,0)	0.0100±0.0004	1.0108±0.0250	0.0241±0.0006	1.4498±0.0853
	Cylindrical	(0,0)	0.0102±0.0008	1.0055±0.0500	0.0159±0.0009	1.4750±0.0941
		(30,0)	0.0101±0.0008	1.0043±0.0588	0.0170±0.0012	1.6793±0.1848