Fig. 7.

(a) Images reconstructed from the experimental data with dual-zone mesh. The center of the target is located at X= 0.24 cm, Y= −0.33 cm, and Z=2.65 cm. The target is a 0.4×0.4×0.4 cm³ cube. The imaging depth used for each slice is the same as Fig. 4. The reconstructed images occur at both the fifth and sixth slices, which corresponds to imaging depths of 2.5 cm and 3.0 cm, respectively. (b) The reconstructed images with single mesh from the same data.