Publications [#328833] of Hau-Tieng Wu

Papers Published

1. Marchesini, S; Schirotzek, A; Yang, C; Wu, HT; Maia, F, Augmented projections for ptychographic imaging, Inverse Problems, vol. 29 no. 11 (November, 2013), pp. 115009-115009, IOP Publishing [doi]
   (last updated on 2024/04/19)

   Abstract:
   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.