Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume 30, Issue 10, Pages 1905-1912Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAA.30.001905
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- Deutsche Forschungsgemeinschaft (DFG)
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In this paper, we present a method to recover the complex amplitude of speckle fields from measurements performed by a shear interferometer. It is based on the optimization of an objective function using the steepest descent gradient technique in combination with a heuristic initial guess. In contrast to already existing methods, the algorithm finds a local minimum least-squares solution even in the presence of Poissonian and Gaussian noise. (C) 2013 Optical Society of America
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