8 papers
Fast Iterative Algorithms for Blind Phase Retrieval: A survey
Huibin Chang, Li Yang, Stefano Marchesini
In nanoscale imaging technique and ultrafast laser, the reconstruction procedure is normally formulated as a blind phase retrieval (BPR) problem, where one has to recover both the…
Overlapping Domain Decomposition Methods for Ptychographic Imaging
Huibin Chang, Roland Glowinski, Stefano Marchesini +3
In ptychography experiments, redundant scanning is usually required to guarantee the stable recovery, such that a huge amount of frames are generated, and thus it poses a great dem…
Analyzer Free Linear Dichroic Ptychography
Huibin Chang, Matthew A Marcus, Stefano Marchesini
Linear-dichroism is an important tool to characterize the transmission matrix and determine the crystal or orbital orientation in a material. In order to gain high resolution mappi…
Bilinear Constraint based ADMM for Mixed Poisson-Gaussian Noise Removal
Jie Zhang, Yuping Duan, Yue Lu +2
In this paper, we propose new operator-splitting algorithms for the total variation regularized infimal convolution (TV-IC) model [4] in order to remove mixed Poisson-Gaussian(MPG)…
Iterative X-ray Spectroscopic Ptychography
Huibin Chang, Ziqin Rong, Pablo Enfedaque +1
Spectroscopic ptychography is a powerful technique to determine the chemical composition of a sample with high spatial resolution. In spectro-ptychography, a sample is rastered thr…
Iterative Joint Ptychography-Tomography with Total Variation Regularization
Huibin Chang, Pablo Enfedaque, Stefano Marchesini
In order to determine the 3D structure of a thick sample, researchers have recently combined ptychography (for high resolution) and tomography (for 3D imaging) in a single experime…