Fourier Ptychography Part II: Phase Retrieval and High-Resolution Image Formation

Autor: Lars Loetgering, Tomas Aidukas, Kevin C Zhou, Felix Wechsler, Roarke Horstmeyer
Rok vydání: 2022
Předmět:
Zdroj: Microscopy Today. 30:36-39
ISSN: 2150-3583
1551-9295
Popis: This article is the second within a three-part series on Fourier ptychography, which is a computational microscopy technique for high-resolution, large field-of-view imaging. While the first article laid out the basics of Fourier ptychography, this second part sheds light on its algorithmic ingredients. We present a non-technical discussion of phase retrieval, which allows for the synthesis of high-resolution images from a sequence of low-resolution raw data. Fourier ptychographic phase retrieval can be carried out on standard, widefield microscopy platforms with the simple addition of a low-cost LED array, thus offering a convenient alternative to other phase-sensitive techniques that require more elaborate hardware such as differential interference contrast and digital holography.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje