CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11653 > Article
Presentation
5 March 2021 Accelerating ptychography with spectral initializations
Lorenzo Valzania, Jonathan Dong, Sylvain Gigan
Author Affiliations +
Proceedings Volume 11653, Quantitative Phase Imaging VII; 116530K (2021) https://doi.org/10.1117/12.2577697
Event: SPIE BiOS, 2021, Online Only
Abstract
Combining synthetic aperture approaches with reference-less setups, ptychography is a promising phase retrieval technique for label-free quantitative phase imaging. Within the phase retrieval community, spectral methods are known to accelerate gradient descent schemes, however their positive effect on experimental ptychographic datasets has not been proved. Inspired by the latest theories on optimal spectral estimation, we achieved 3 times faster ptychographic reconstructions than with a standard gradient descent algorithm, in both simulations and experiments. The algorithms and experimental parameters crucially impacting the convergence speed are discussed. We believe that spectral methods will help improve both theoretical understanding and experimental implementations of ptychography.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Lorenzo Valzania, Jonathan Dong, and Sylvain Gigan "Accelerating ptychography with spectral initializations", Proc. SPIE 11653, Quantitative Phase Imaging VII, 116530K (5 March 2021); https://doi.org/10.1117/12.2577697
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
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Phase retrieval
Signal processing
Computer simulations
Phase imaging
Photonics
Reconstruction algorithms
Data processing
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top