Fig. 5. Simulated reconstructions for varying background/foreground contrast ratios.

Objects with strong contrast between the foreground and background amplitude values have a higher fidelity reconstruction than those where the background and foreground amplitudes are similar. The high-resolution complex object used for testing is shown in the top row. Simulation parameters are chosen to match the experimental parameters used in Fig. 4. The bottom three rows represent reconstructions where the amplitude in the high-resolution object is varied to different intensity ranges. Reconstruction quality falls as the contrast in the amplitude decreases. This suggests that a more robust signal model is necessary to suppress speckle for objects with low contrast.