Theoretical analysis of diffraction imaging in Fourier ptychography microscopy

Shaohui Zhang; Yao Hu; Ying Wang; Xuemin Cheng; Qun Hao

doi:10.1117/12.2519587

13 May 2019 Theoretical analysis of diffraction imaging in Fourier ptychography microscopy

Shaohui Zhang, Yao Hu, Ying Wang, Xuemin Cheng, Qun Hao

Proceedings Volume 10990, Computational Imaging IV; 109900A (2019) https://doi.org/10.1117/12.2519587
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Fourier ptychography microscopy (FPM) is a recently developed computational imaging approach which surpasses the resolution barrier of a low numerical aperture (NA) imaging system. It is a powerful tool due to its ability to achieve super resolution of complex sample function, pupil aberration, LED misalignment, and beyond. However, recent studies have focused more on the optimization algorithms and set-ups instead of its theoretical background. Although some imaging laws about FPM have already been set forth, the formulas and laws are not fully defined, and the connection between diffraction theory and Fourier optics has a gap. Therefore, there exist a need for comprehensive research on physical and mathematical basis of FPM for future applications. Keeping this goal in mind, this manuscript utilizes scalar field diffraction theory to rigorously study the relationship between wavelength, the propagation mode, illumination direction of the incident wave, sample structure information and the direction of the output wave. The theoretical analysis of diffraction imaging in FPM provides a clear physical basis for not only the FPM systems, but also for the ptychography iterative engine (PIE) and any other coherent diffraction imaging techniques and systems. It can help to find the source of noise and therefore improve image quality in FPM technique and systems.

Conference Presentation

Citation Download Citation

Shaohui Zhang, Yao Hu, Ying Wang, Xuemin Cheng, and Qun Hao "Theoretical analysis of diffraction imaging in Fourier ptychography microscopy", Proc. SPIE 10990, Computational Imaging IV, 109900A (13 May 2019); https://doi.org/10.1117/12.2519587

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available