12 citations · 35 across the 8 of their papers we have counts for
4 papers · 1 filter
Superiorized iteration based on proximal point method and its application to XCT image reconstruction
Shousheng Luo, Yanchun Zhang, Tie Zhou +1
In this paper, we investigate how to determine a better perturbation for superiorized iteration. We propose to seek the perturbation by proximal point method. In our method, the di…
On Relaxed Averaged Alternating Reflections (RAAR) Algorithm for Phase Retrieval from Structured Illuminations
Ji Li, Tie Zhou
In this paper, as opposed to the random phase masks, the structured illuminations with a pixel-dependent deterministic phase shift are considered to derandomize the model setup. Th…
Numerical Optimization Algorithm of Wavefront Phase Retrieval from Multiple Measurements
Ji Li, Tie Zhou
Wavefront phase retrieval from a set of intensity measurements can be formulated as an optimization problem. Two nonconvex objective models (MLP and its variants LS) based on maxim…
On Gradient Descent Algorithm for Generalized Phase Retrieval Problem
Ji Li, Tie Zhou
In this paper, we study the generalized phase retrieval problem: to recover a signal from the measurements $y_r=\lvert \langle\bm{a}_r,\bm{x}\rangle\rvert^2…