Phase retrieval for arbitrary complex-valued objects using structured illumination

A method to solve of the phase retrieval problem in a non-convex formulation for complex-valued objects with support constraint is proposed. It shown that two coded diffraction patterns (CDPs) obtained same Fresnel or Fraunhofer plane by masking an object two, direct and inverse, random binary amplitude masks, are sufficient reconstruct arbitrary up global phase. The general solution was found as sum mutually phase-consistent partial solutions applying modified error-reduction hybrid input-output algorithm each “mask+CDP” pairs. results model experiments confirmed possibility noise-resistant high-accuracy various types oversampling ratio σ ≥ 2 making use small number iterations. applicable coherent radiation any kind.