We've seen interesting things from these authors before and they continue: Single-shot phase imaging with randomized light (SPIRaL) by Ryoichi Horisaki, Riki Egami, and Jun Tanida by Ryoichi Horisaki, Riki Egami, and Jun Tanida
We present a method for single-shot phase imaging with randomized light (SPIRaL). In SPIRaL, the complex (amplitude and phase) field of an object illuminated with a randomized coherent beam is captured with an image sensor, without the need for any reference light. The object field is retrieved from the single captured intensity image by a compressive sensing-based algorithm with a sparsity constraint. SPIRaL has higher observation speed, light efficiency, and flexibility of the implementation compared with previous methods. We demonstrate SPIRaL numerically and experimentally.
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