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Proceedings Paper

Astronomical image restoration through atmosphere turbulence by lucky imaging
Author(s): Shixue Zhang; Yuanhao Wu; Jinyu Zhao; Jianli Wang
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Paper Abstract

In this paper, we develop a lucky imaging system to restore astronomical images through atmosphere turbulence. Our system takes very short exposures, on the order of the atmospheric coherence time. The rapidly changing turbulence leads to a very variable point spread function (PSF), and the variability of the PSF leads to some frames having better quality than the rest. Only the best frames are selected, aligned and co-added to give a final image with much improved angular resolution. Our system mainly consists of five parts: preprocessing, frame selection, image registration, image reconstruction, and image enhancement. Our lucky imaging system has been successfully applied to restore the astronomical images taken by a 1.23m telescope. We have got clear images of moon surface and Jupiter, and our system can be demonstrated to greatly improve the imaging resolution through atmospheric turbulence.

Paper Details

Date Published: 9 July 2011
PDF: 5 pages
Proc. SPIE 8009, Third International Conference on Digital Image Processing (ICDIP 2011), 80090B (9 July 2011); doi: 10.1117/12.896183
Show Author Affiliations
Shixue Zhang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yuanhao Wu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jinyu Zhao, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Jianli Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 8009:
Third International Conference on Digital Image Processing (ICDIP 2011)
Ting Zhang, Editor(s)

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