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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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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  11. Authors: Ercan E. Kuruoglu and Carlo Baccigalupi

    Citation: EURASIP Journal on Advances in Signal Processing 2005 2005:274312

    Content type: Research Article

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  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

    Content type: Research Article

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  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

    Content type: Research Article

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