Topic
Speckle imaging
About: Speckle imaging is a research topic. Over the lifetime, 3730 publications have been published within this topic receiving 62354 citations.
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TL;DR: In this paper, a method for resolution enhancement of a diffraction limited optical system based on the capture of a set of low-resolution images is proposed, which is obtained after projection of an ensemble of unknown speckle patterns on top of the high resolution object that is to be imaged.
Abstract: We propose a method for resolution enhancement of a diffraction limited optical system based on the capture of a set of low resolution images. These images are obtained after projection of an ensemble of unknown speckle patterns on top of the high resolution object that is to be imaged. Each speckle pattern is generated by the same thin (and unknown) diffuser, but illuminated with a slightly different wavelength. From the ensemble of low resolution images, we obtain a system of equations that can be solved in an iterative manner that enables reconstruction of the high resolution object. As a result, we also achieve the projected high resolution speckle patterns used for the encoding.
16 citations
TL;DR: Theoretical transfer functions for astronomical speckle interferometry, through a defocused telescope, have been computed assuming a log-normal complex amplitude for the incoming wavefront as discussed by the authors.
16 citations
16 citations
DOI•
01 Jan 1998
TL;DR: These Ecole polytechnique federale de Lausanne EPFL, n° 1797 (1998) Reference as mentioned in this paper Reference doi:10.5075/epfl-thesis-1797
Abstract: These Ecole polytechnique federale de Lausanne EPFL, n° 1797 (1998) Reference doi:10.5075/epfl-thesis-1797Print copy in library catalog Record created on 2005-03-16, modified on 2016-08-08
16 citations
TL;DR: In this paper, the authors show that the empirical mode decomposition method can overcome these drawbacks and consequently introduces an improvement in the evaluation of the phase distribution, which can be used to illustrate the phase measurement improvement.
16 citations