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Proceedings Paper

Sparsity assisted approach for imaging from laser speckle
Author(s): Vinu R. V.; Charu Gaur; Kedar Khare; Rakesh Kumar Singh
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Paper 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.

Paper Details

Date Published: 21 February 2017
PDF: 5 pages
Proc. SPIE 10074, Quantitative Phase Imaging III, 1007409 (21 February 2017); doi: 10.1117/12.2251983
Show Author Affiliations
Vinu R. V., Indian Institute of Space Science and Technology (India)
Charu Gaur, Indian Institute of Technology Delhi (India)
Kedar Khare, Indian Institute of Technology Delhi (India)
Rakesh Kumar Singh, Indian Institute of Space Science and Technology (India)


Published in SPIE Proceedings Vol. 10074:
Quantitative Phase Imaging III
Gabriel Popescu; YongKeun Park, Editor(s)

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