Wavelet domain Bayesian denoising of string signal in the cosmic microwave background

D. K. Hammond, Yves Wiaux, Pierre Vandergheynst

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

An algorithm is proposed for denoising the signal induced by cosmic strings in the cosmic microwave background. A Bayesian approach is taken, based on modelling the string signal in the wavelet domain with generalized Gaussian distributions. Good performance of the algorithm is demonstrated by simulated experiments at arcminute resolution under noise conditions including primary and secondary cosmic microwave background anisotropies, as well as instrumental noise.

Original languageEnglish
Pages (from-to)1317-1332
Number of pages16
JournalMonthly Notices of the Royal Astronomical Society
Volume398
Issue number3
DOIs
Publication statusPublished - 21 Sep 2009

Keywords

  • Cosmic microwave background
  • Methods: Data analysis
  • Techniques: image processing

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Fingerprint Dive into the research topics of 'Wavelet domain Bayesian denoising of string signal in the cosmic microwave background'. Together they form a unique fingerprint.

  • Cite this