SSIM-Optimization-based Phase Retrieval Method for Optical Imaging

Rui Jiao

Abstract

P hase retrieval is an important issue in the field of engineering physics, studying how to estimate a signal from its Fourier transform magnitude. Iterative projection algorithms are generally used in phase retrieval, which being a substitute of lenses, numerically rather than optically, to recombine light scattered by illuminated objects. In order to optimize iterative phase retrieval method, phase retrieval for optical imaging based on structural similarity(SSIM) algorithm optimization is proposed. SSIM is used to evaluate each iterative results of phase retrieval and obtain the termination conditions of the iterative process. Experiments show that the proposed method lead to less iteration number and higher reconstruction fidelity, it also provides a general solution for imaging with phase retrieval.