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Applications of Signal Processing in Astrophysics and Cosmology

  1. This paper considers the detection of point sources in two-dimensional astronomical images. The detection scheme we propose is based on peak statistics. We discuss the example of the detection of far galaxies ...

    Authors: M. López-Caniego, D. Herranz, J. L. Sanz and R. B. Barreiro
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:985049
  2. A new method for the multiband segmentation of a spectroscopic line data cube is presented. This method is intended to help astronomers to handle complex spectroscopic line data cubes where the inspection of t...

    Authors: Farid Flitti, Christophe Collet, Bernd Vollmer and François Bonnarel
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:921039
  3. This paper presents a new data compression concept, "on-board processing," for infrared astronomy, where space observatories have limited processing resources. The proposed approach has been developed and test...

    Authors: Ahmed Nabil Belbachir, Horst Bischof, Roland Ottensamer, Franz Kerschbaum and Christian Reimers
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:695165
  4. We consider the problem of restoring astronomical images acquired with charge coupled device cameras. The astronomical object is first blurred by the point spread function of the instrument-atmosphere set. The...

    Authors: H. Lantéri and C. Theys
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:643143
  5. An automatic interferometer fringe tracking system has been developed, implemented, and tested at the Infrared Optical Telescope Array (IOTA) Observatory at Mount Hopkins, Arizona. The system can minimize the ...

    Authors: Edward Wilson, Ettore Pedretti, Jesse Bregman, Robert W. Mah and Wesley A. Traub
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:531501
  6. It is a recurrent issue in astronomical data analysis that observations are incomplete maps with missing patches or intentionally masked parts. In addition, many astrophysical emissions are nonstationary proce...

    Authors: Y. Moudden, J.-F. Cardoso, J.-L. Starck and J. Delabrouille
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:484606
  7. Galaxies are arranged in interconnected walls and filaments forming a cosmic web encompassing huge, nearly empty, regions between the structures. Many statistical methods have been proposed in the past in orde...

    Authors: J-L. Starck, V. J. Martínez, D. L. Donoho, O. Levi, P. Querre and E. Saar
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:483071
  8. A new robust technique is presented for automated identification of sunspots on full-disk white-light (WL) solar images obtained from SOHO/MDI instrument and Ca II K1 line images from the Meudon Observatory. E...

    Authors: S. Zharkov, V. Zharkova, S. Ipson and A. Benkhalil
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:318462
  9. Currently, it appears that the best method for non-Gaussianity detection in the cosmic microwave background (CMB) consists in calculating the kurtosis of the wavelet coefficients. We know that wavelet-kurtosis...

    Authors: J. Jin, J. -L. Starck, D. L. Donoho, N. Aghanim and O. Forni
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:297184
  10. Stellar spectral classification is not only a tool for labeling individual stars but is also useful in studies of stellar population synthesis. Extracting the physical quantities from the digitized spectral pl...

    Authors: Emmanuel Bratsolis
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:296545
  11. Authors: Ercan E. Kuruoglu and Carlo Baccigalupi
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:274312
  12. We describe an image compression strategy potentially capable of preserving the scientific quality of astrophysical data, simultaneously allowing a consistent bandwidth reduction to be achieved. Unlike strictly l...

    Authors: Cinzia Lastri, Bruno Aiazzi, Luciano Alparone and Stefano Baronti
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:192492
  13. This paper proposes a new strategy to separate astrophysical sources that are mutually correlated. This strategy is based on second-order statistics and exploits prior information about the possible structure ...

    Authors: L. Bedini, D. Herranz, E. Salerno, C. Baccigalupi, E.E. Kuruoğlu and A. Tonazzini
    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:190845