Augmented projections for ptychographic imaging


Journal Article

Ptychography is a popular technique to achieve diffraction limited resolution images of a two- or three-dimensional sample using high frame rate detectors. We introduce a relaxation of common projection algorithms to account for instabilities given by intensity and background fluctuations, position errors, or poor calibration using multiplexing illumination. This relaxation introduces an additional phasing optimization at every step that enhances the convergence rate of common projection algorithms. Numerical tests exhibit the exact recovery of the object and the perturbations when there is high redundancy in the data. © 2013 IOP Publishing Ltd.

Full Text

Duke Authors

Cited Authors

  • Marchesini, S; Schirotzek, A; Yang, C; Wu, HT; Maia, F

Published Date

  • November 1, 2013

Published In

Volume / Issue

  • 29 / 11

Electronic International Standard Serial Number (EISSN)

  • 1361-6420

International Standard Serial Number (ISSN)

  • 0266-5611

Digital Object Identifier (DOI)

  • 10.1088/0266-5611/29/11/115009

Citation Source

  • Scopus