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Resolution Improvement of Solar Images

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Abstract

A method for the improvement of resolution in an observed solar image is proposed. A blind deconvolution method is used for restoration of an atmospherically-degraded solar image, and a super-resolution method is applied to its restored image to improve the resolution. It is confirmed that a blind deconvolution process can restore fine structures that are blurred in an observed image, and that the super-resolution process can make a cutoff frequency in a blind-deconvolved image higher. A time series of super-resolved images of a sunspot observed with the 70-cm Vacuum Tower Telescope at Teide Observatory is presented.

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Authors and Affiliations

  1. Department of Computer Sciences, Kitami Institute of Technology, 165 Koen-cho, Kitami, 090-8507, Japan

    Noriaki Miura

  2. Department of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan

    Naoshi Baba

  3. National Astronomical Observatory of Japan, 2-2-1 Osawa, Mitaka, 181-8588, Japan

    Takashi Sakurai & Kiyoshi Ichimoto

  4. Kiepenheuer-Institut für Sonnenphysik, Schöneckstraße 6, D79104, Freiburg i. Br., Germany

    Dirk Soltau & Peter Brandt

Authors
  1. Noriaki Miura
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  2. Naoshi Baba
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  3. Takashi Sakurai
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  4. Kiyoshi Ichimoto
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  5. Dirk Soltau
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  6. Peter Brandt
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Miura, N., Baba, N., Sakurai, T. et al. Resolution Improvement of Solar Images. Sol Phys 187, 347–356 (1999). https://doi.org/10.1023/A:1005107223372

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  • DOI: https://doi.org/10.1023/A:1005107223372

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