3.7k citations · 4.5k across the 21 of their papers we have counts for
8 papers · 1 filter
Holographic Phase Retrieval and Reference Design
David A. Barmherzig, Ju Sun, T. J. Lane +2
A general mathematical framework and recovery algorithm is presented for the holographic phase retrieval problem. In this problem, which arises in holographic coherent diffraction…
A Local Analysis of Block Coordinate Descent for Gaussian Phase Retrieval
David Barmherzig, Ju Sun
While convergence of the Alternating Direction Method of Multipliers (ADMM) on convex problems is well studied, convergence on nonconvex problems is only partially understood. In t…
A Geometric Analysis of Phase Retrieval
Ju Sun, Qing Qu, John Wright
Can we recover a complex signal from its Fourier magnitudes? More generally, given a set of measurements, for , is it possibl…
Complete Dictionary Recovery over the Sphere II: Recovery by Riemannian Trust-region Method
Ju Sun, Qing Qu, John Wright
We consider the problem of recovering a complete (i.e., square and invertible) matrix , from with $\mathbf Y = \mathbf A_0 \mat…
Complete Dictionary Recovery over the Sphere I: Overview and the Geometric Picture
Ju Sun, Qing Qu, John Wright
We consider the problem of recovering a complete (i.e., square and invertible) matrix , from with $\mathbf Y = \mathbf A_0 \mat…
Complete Dictionary Recovery over the Sphere
Ju Sun, Qing Qu, John Wright
We consider the problem of recovering a complete (i.e., square and invertible) matrix , from with $\mathbf Y = \mathbf A_0 \math…