Phase retrieval with Bregman divergences: Application to audio signal recovery
arXiv:2011.12818
Abstract
Phase retrieval aims to recover a signal from magnitude or power spectra measurements. It is often addressed by considering a minimization problem involving a quadratic cost function. We propose a different formulation based on Bregman divergences, which encompass divergences that are appropriate for audio signal processing applications. We derive a fast gradient algorithm to solve this problem.
in Proceedings of iTWIST'20, Paper-ID: 16, Nantes, France, December, 2-4, 2020