Iterative phase retrieval in coherent diffractive imaging: practical issues

TL;DR

This paper discusses practical issues in phase retrieval for coherent diffractive imaging, emphasizing artifact avoidance and evaluation of reconstruction quality to ensure artifact-free results.

Contribution

It provides a comprehensive analysis of challenges in phase retrieval and offers practical guidelines to improve artifact-free reconstructions in CDI.

Findings

Identification of key issues causing artifacts in CDI reconstructions

Practical recipes for avoiding artifacts during phase retrieval

Evaluation methods for assessing reconstruction quality

Abstract

In this work, issues in phase retrieval in the coherent diffractive imaging (CDI) technique, from discussion on parameters for setting up a CDI experiment to evaluation of the goodness of the final reconstruction, are discussed. The distribution of objects under study by CDI often cannot be cross-validated by another imaging technique. It is therefore important to make sure that the developed CDI procedure delivers an artifact-free object reconstruction. Critical issues that can lead to artifacts are presented and recipes on how to avoid them are provided.