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Multiresolution Approach to Image Reconstruction with Phase-Diversity Technique |
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| Authors: | Yasuhiro Ohneda Naoshi Baba Noriaki Miura Takashi Sakurai |
| Affiliation: | (1) Department of Applied Physics, Hokkaido University, Kita 13 Nishi 8, Sapporo 060-8628, Japan;(2) Department of Computer Sciences, Kitami Institute of Technology, 165, Koencho, Kitami 090-8507, Japan;(3) National Astronomical Observatory, 2-21-1, Ohsawa, Mitaka 181-8588, Japan;(4) Present address: Hitachi Software Engineering, Ltd., 6-81, Onoe-cho, Yokohama 231-0015, Japan |
| Abstract: | A multiresolution analysis is adopted to improve an image reconstruction with a phase-diversity technique. The phase distribution at low resolution is first estimated and then is used as an initial estimate for phase reconstruction at a higher resolution level. Computer simulations are conducted to confirm the proposed method. The method is applied for image reconstruction of solar granulation. |
| Keywords: | phase diversity speckle interferometry image reconstruction multiresolution analysis solar imaging |
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