Hybrid method for accurate phase retrieval based on higher order transport of intensity equation and multiplane iteration

Junbao Hu; Lingfeng Wu

doi:10.1117/1.OE.58.6.063106

20 June 2019 Hybrid method for accurate phase retrieval based on higher order transport of intensity equation and multiplane iteration

Junbao Hu, Lingfeng Wu

Author Affiliations +

Optical Engineering, Vol. 58, Issue 6, 063106 (June 2019). https://doi.org/10.1117/1.OE.58.6.063106

Abstract

Because phase contains specific information of the sample, especially transparent specimens such as biological cells and tissues, it is of utmost significance to accurately extract the phase. Although the phase can be directly solved from multiplane intensities through the prevalent transport of intensity equation (TIE) method, too many approximations in the solving process ultimately reduce its recovery accuracy. In addition, an iterative idea as a classic but potential tool allows quantitatively reconstructing phase while it is prone to trap in local stagnation due to nonconvexity. In order to restore the phase quantitatively and precisely, we propose a hybrid method combining the initial phase value via higher order TIE for system error reduction, and a final recovery solution using multiplane iteration for phase accuracy enhancement. Simulation and experimental results show that the proposed method not only has good noise suppression ability but also high phase recovery accuracy, and thus can be used in fields such as biological observation and medical diagnosis in the future.

Citation Download Citation

Junbao Hu and Lingfeng Wu "Hybrid method for accurate phase retrieval based on higher order transport of intensity equation and multiplane iteration," Optical Engineering 58(6), 063106 (20 June 2019). https://doi.org/10.1117/1.OE.58.6.063106

Received: 28 March 2019; Accepted: 4 June 2019; Published: 20 June 2019

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