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Resolution Improvement of Solar Images |
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| Authors: | Miura Noriaki Baba Naoshi Sakurai Takashi Ichimoto Kiyoshi Soltau Dirk Brandt Peter |
| Institution: | 1.Department of Computer Sciences, Kitami Institute of Technology, 165 Koen-cho, Kitami, 090-8507, Japan ;2.Department of Applied Physics, Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan ;3.National Astronomical Observatory of Japan, 2-2-1 Osawa, Mitaka, 181-8588, Japan ;4.Kiepenheuer-Institut für Sonnenphysik, Sch?neckstra?e 6, D79104, Freiburg i. Br., Germany ; |
| 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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