CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 10462 > Article
Paper
24 October 2017 Positive absorption constraint based ptychographical algorithm with fast convergence rate
Changchao Zhai, Dayong Wang, Lu Rong, Zhihao Xu, Min Wan, Honghong Wang, Yunxin Wang
Author Affiliations +
Proceedings Volume 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications; 104624D (2017) https://doi.org/10.1117/12.2285532
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
Ptychography can reconstruct the complex amplitude distribution of the transmission object from the overlapped diffraction patterns. The extended ptychographical iterative engine (ePIE) algorithm is considered as one of the most popular phase retrieval algorithms of present time which has strong robustness and high image quality. However, no constraint is added in the iteration process, which results in slow convergence and makes the real-time imaging difficult. To overcome this problem, an efficient phase retrieval algorithm is proposed based on the constraint of positive absorption in the object plane where the absorption coefficient and phase distribution of the object are constrained by the positive absorption of the object. The simulation demonstrated that the proposed algorithm has greatly improve the convergence rate and imaging quality of traditional ePIE algorithm and is expected to be applied in real-time imaging.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Changchao Zhai, Dayong Wang, Lu Rong, Zhihao Xu, Min Wan, Honghong Wang, and Yunxin Wang "Positive absorption constraint based ptychographical algorithm with fast convergence rate", Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 104624D (24 October 2017); https://doi.org/10.1117/12.2285532
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 6 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Absorption
Phase retrieval
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top