Sparsity assisted approach for imaging from laser speckle

Vinu R. V.; Charu Gaur; Kedar Khare; Rakesh Kumar Singh

doi:10.1117/12.2251983

21 February 2017 Sparsity assisted approach for imaging from laser speckle

Vinu R. V., Charu Gaur, Kedar Khare, Rakesh Kumar Singh

Proceedings Volume 10074, Quantitative Phase Imaging III; 1007409 (2017) https://doi.org/10.1117/12.2251983
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

A non-interferometric technique for imaging from laser speckle using speckle autocorrelation assisted with sparsity enhanced iterative phase reconstruction is proposed and demonstrated in this paper. The use of sparsity assisted approach in combination with speckle correlation provides the potential to retrieve the complex correlation function from random speckle pattern. Imaging through random scattering medium is demonstrated by recovery of a circular and an annular aperture from the laser speckle.

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Citation Download Citation

Vinu R. V., Charu Gaur, Kedar Khare, and Rakesh Kumar Singh "Sparsity assisted approach for imaging from laser speckle", Proc. SPIE 10074, Quantitative Phase Imaging III, 1007409 (21 February 2017); https://doi.org/10.1117/12.2251983

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