A Procedure for the Automated Detection of Magnetic Field Inversion in SOHO MDI Magnetograms

  • S. S. Ipson
  • V. V. Zharkova
  • S. I. Zharkov
  • A. Benkhalil
Conference paper

DOI: 10.1007/978-3-540-30134-9_61

Part of the Lecture Notes in Computer Science book series (LNCS, volume 3215)
Cite this paper as:
Ipson S.S., Zharkova V.V., Zharkov S.I., Benkhalil A. (2004) A Procedure for the Automated Detection of Magnetic Field Inversion in SOHO MDI Magnetograms. In: Negoita M.G., Howlett R.J., Jain L.C. (eds) Knowledge-Based Intelligent Information and Engineering Systems. KES 2004. Lecture Notes in Computer Science, vol 3215. Springer, Berlin, Heidelberg

Abstract

Magnetic inversion lines are generally constructed from line-of-sight magnetic field data which have been smoothed to reduce the resolution scale of the data. This eliminates the fine details of the magnetic inversion lines found in regions of strong magnetic field. The paper presents a new approach to constructing magnetic neutral lines, based on a distance transform, which aims to construct neutral lines retaining fine detail in regions of strong magnetic field while reducing the detail elsewhere. The method of implementation is de-scribed and results obtained are compared with those obtained by applying Gaussian smoothing to solar magnetograms and with filaments visible in an H image for 2002 July.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • S. S. Ipson
    • 1
  • V. V. Zharkova
    • 1
  • S. I. Zharkov
    • 1
  • A. Benkhalil
    • 1
  1. 1.Department of CyberneticsUniversity of BradfordUK

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