Figure 4
From: High-resolution far-field ghost imaging via sparsity constraint
Experimental GISC reconstruction results of the same double-slit in different distances z1 and the other conditions are the same as Fig. 3 (K = 4000, namely 40% the Nyquist limit).
(a). z1 = 500 mm; (b). z1 = 200 mm; (c). z1 = 100 mm; (d) z1 = 10 mm. The receiving area of the detector Dt is 6.4 mm × 6.4 mm. The green solid curves displayed in (e) and (f) are the cross-section of Fourier-transform distributions of GI and GISC reconstruction results at (fx, 0) direction in the case of (d), respectively. The red solid curve is the cross-section of Fourier-transform distribution of the object shown in Fig. 3(b) at (fx, 0) direction. The blue solid curve is the cross-section of the image shown in Fig. 2(e) at (fx, 0) direction.
