Using Speckles To Recover An Image After Its Transmission Through Obstacles

We show that an image, embedded into a speckle pattern, is robust against distortions during its transmission through obstacles. The robustness depends on the coherence length of the speckles and obstruction size. This behavior is based on the self-reconfiguration effect, where, even though some speckles have been blocked by an opaque obstacle, the speckle-pattern intensity is reestablished during propagation at the point where the signature of the obstacle disappears. We evaluated the self-reconfiguration ability of the image using the concepts of visibility and similarity.