Partially linear estimation with application to image deblurring using blurred/noisy image pairs

Tomer Michaeli, Daniel Sigalov, Yonina C. Eldar, Fabian Theis (Editor), Andrzej Cichocki (Editor), Arie Yeredor, Michael Zibulevsky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We address the problem of estimating a random vector X from two sets of measurements Y and Z, such that the estimator is linear in Y. We show that the partially linear minimum mean squared error (PLMMSE) estimator requires knowing only the second-order moments of X and Y, making it of potential interest in various applications. We demonstrate the utility of PLMMSE estimation in recovering a signal, which is sparse in a unitary dictionary, from noisy observations of it and of a filtered version of it. We apply the method to the problem of image enhancement from blurred/noisy image pairs. In this setting the PLMMSE estimator performs better than denoising or deblurring alone, compared to state-of-the-art algorithms. Its performance is slightly worse than joint denoising/deblurring methods, but it runs an order of magnitude faster.

Original languageEnglish
Title of host publicationLatent Variable Analysis and Signal Separation - 10th International Conference, LVA/ICA 2012, Proceedings
PublisherSpringer Verlag
Pages9-16
Number of pages8
ISBN (Electronic)978-3-642-28551-6
ISBN (Print)9783642285509, 978-3-642-28550-9
DOIs
StatePublished - 2012
Event10th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2012 - Tel Aviv, Israel
Duration: 12 Mar 201215 Mar 2012

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7191 LNCS

Conference

Conference10th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2012
Country/TerritoryIsrael
CityTel Aviv
Period12/03/1215/03/12

Keywords

  • Bayesian estimation
  • linear estimation
  • minimum mean squared error

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • General Computer Science

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