Advanced phase retrieval: maximum likelihood technique with sparse regularization of phase and amplitude
Abstract
Sparse modeling is one of the efficient techniques for imaging that allows recovering lost information. In this paper, we present a novel iterative phase-retrieval algorithm using a sparse representation of the object amplitude and phase. The algorithm is derived in terms of a constrained maximum likelihood, where the wave field reconstruction is performed using a number of noisy intensity-only observations with a zero-mean additive Gaussian noise. The developed algorithm enables the optimal solution for the object wave field reconstruction. Our goal is an improvement of the reconstruction quality with respect to the conventional algorithms. Sparse regularization results in advanced reconstruction accuracy, and numerical simulations demonstrate significant enhancement of imaging.
Cite
@article{arxiv.1108.3251,
title = {Advanced phase retrieval: maximum likelihood technique with sparse regularization of phase and amplitude},
author = {Artem Migukin and Vladimir Katkovnik and Jaakko Astola},
journal= {arXiv preprint arXiv:1108.3251},
year = {2011}
}
Comments
Submitted to the 10th IMEKO Symposium LMPMI (Laser Metrology for Precision Measurement and Inspection in Industry) on May 31, 2011