Table 1. Optical properties for each region in the heterogeneous object calculated at three different wavelengths. The values of the scattering and absorption coefficients are given in (mm⁻¹).

	580 nm		600 nm		620 nm
	${{\mu }^{\prime }}_s$	${\mu }_a$	${{\mu }^{\prime }}_s$	${\mu }_a$	${{\mu }^{\prime }}_s$	${\mu }_a$
Skin	2.6006	0.1299	2.5054	0.0391	2.4167	0.0178
Bowel	1.3741	0.0202	1.3175	0.0073	1.2650	0.0041
Kidney	2.8013	0.1216	2.6615	0.0372	2.5329	0.0176
Bone	3.0847	0.1042	2.9347	0.0328	2.7966	0.0146
Adipose	1.3037	0.0077	1.2805	0.0031	1.2584	0.0022