Fig. 1. Experimental setup of GISC using DMD.

Fig. 2. Distributions of μij of the original matrix Dinit (blue line) and the optimized matrix Dopt (red line). Coherence μij of Dopt are concentrated in the region with smaller coherence values if compared with that of Dinit.

Fig. 3. Simulation results of the test object (pattern of “tai chi”) with different numbers of samplings: (a) original object; reconstruction results with (b) K=500; (c) K=1000; (d) K=1500; (e) K=2000; (f) K=2500. Shown in the top line are the results obtained with Gaussian random matrix Ainit and in the bottom line the optimized matrix Aopt.

Fig. 4. RMSE and PSNR values of the reconstructed images in the simulation with different numbers of samplings using Ainit (blue line) and Aopt (red line).

Fig. 5. Experimental results with different numbers of samplings: (a) reference image; reconstructed results with (b) K=1000; (c) K=2000; (d) K=3000; (e) K=4000. Shown in the top line are the results obtained with Gaussian random matrix Ainit and in the bottom line the optimized matrix Aopt.

Fig. 6. RMSE and PSNR values of the reconstructed images with different numbers of samplings using Ainit (blue line) and Aopt (red line) in the experiment.