24 citations · 25 across the 3 of their papers we have counts for
3 papers
math.NA2019★ 24 cited
Perturbed Amplitude Flow for Phase Retrieval
Bing Gao, Xinwei Sun, Yang Wang +1
In this paper, we propose a new non-convex algorithm for solving the phase retrieval problem, i.e., the reconstruction of a signal $ \vx\in\H^n $ ( or $\C$) from phaseless s…
math.FA2012★ 1 cited
On B-spline framelets derived from the unitary extension principle
Zuowei Shen, Zhiqiang Xu
Spline wavelet tight frames of Ron-Shen have been used widely in frame based image analysis and restorations. However, except for the tight frame property and the approximation ord…
cs.CV2008
Discrete schemes for Gaussian curvature and their convergence
Zhiqiang Xu, Guoliang Xu
In this paper, several discrete schemes for Gaussian curvature are surveyed. The convergence property of a modified discrete scheme for the Gaussian curvature is considered. Furthe…