Solar Physics

, Volume 228, Issue 1–2, pp 191–215

Solar Image Restoration By Use Of Multi-frame Blind De-convolution With Multiple Objects And Phase Diversity

  • Michiel Van Noort
  • Luc Rouppe Van Der Voort
  • Mats G. Löfdahl
Article

Abstract

An extension of Joint Phase Diverse Speckle image restoration is presented. Multiple realizations of multiple objects having known wavefront relations with each other can now be restored jointly. As the alignment of the imaging setup does not change, near-perfect alignment can be achieved between different objects, thus greatly reducing false signals in the determination of derived quantities, such as magnetograms, Dopplergrams, etc. The method was implemented in C++ as an image restoration server, to which worker clients can connect and disconnect randomly, so that a large number of CPUs can be used to speed up the restorations. We present a number of examples of applications of the restoration method to observations obtained with the Swedish 1-m Solar Telescope on La Palma.

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • Michiel Van Noort
    • 1
  • Luc Rouppe Van Der Voort
    • 2
  • Mats G. Löfdahl
    • 3
  1. 1.Institute of Theoretical AstrophysicsUniversity of OsloBlindernOsloNorway
  2. 2.Center of Mathematics for ApplicationsUniversity of OsloBlindernNorway
  3. 3.Institute for Solar Physics of the Royal Swedish Academy of SciencesAlbaNova University CenterStockholmSweden

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