Embedded pupil function recovery for Fourier ptychographic microscopy

We develop and test a pupil function determination algorithm, termed embedded pupil function recovery (EPRY), which can be incorporated into the Fourier ptychographic microscopy (FPM) algorithm and recover both the Fourier spectrum of sample and the pupil function of imaging system simultaneously. T...

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Bibliographic Details
Published in:Optics express Vol. 22; no. 5; pp. 4960 - 4972
Main Authors: Ou, Xiaoze, Zheng, Guoan, Yang, Changhuei
Format: Journal Article
Language:English
Published: United States Optical Society of America 10.03.2014
Subjects:
Algorithms
Fourier Analysis
Humans
Image Processing, Computer-Assisted - methods
Image Processing, Computer-Assisted - statistics & numerical data
Microscopy, Interference - methods
Microscopy, Interference - statistics & numerical data
Optical Phenomena
Pupil - physiology
ISSN:1094-4087, 1094-4087
Online Access:Get full text
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Summary:We develop and test a pupil function determination algorithm, termed embedded pupil function recovery (EPRY), which can be incorporated into the Fourier ptychographic microscopy (FPM) algorithm and recover both the Fourier spectrum of sample and the pupil function of imaging system simultaneously. This EPRY-FPM algorithm eliminates the requirement of the previous FPM algorithm for a priori knowledge of the aberration in the imaging system to reconstruct a high quality image. We experimentally demonstrate the effectiveness of this algorithm by reconstructing high resolution, large field-of-view images of biological samples. We also illustrate that the pupil function we retrieve can be used to study the spatially varying aberration of a large field-of-view imaging system. We believe that this algorithm adds more flexibility to FPM and can be a powerful tool for the characterization of an imaging system's aberration.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.004960