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Phase retrieval with Bregman divergences: Application to audio signal recovery

2020-11-25 15:21:39
Pierre-Hugo Vial, Paul Magron, Thomas Oberlin, Cédric Févotte
arXiv_SD
   
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.

Abstract (translated)

URL

https://arxiv.org/abs/2011.12818

PDF

https://arxiv.org/pdf/2011.12818.pdf

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