Multiframe blind deconvolution for imaging in daylight and strong turbulence conditions

Michael Hart; Stuart Jefferies; Douglas Hope; E. Keith Hege; Runa Briguglio; Enrico Pinna; Alfio Puglisi; Fernando Quiros; Marco Xompero

doi:10.1117/12.896564

13 September 2011 Multiframe blind deconvolution for imaging in daylight and strong turbulence conditions

Michael Hart, Stuart Jefferies, Douglas Hope, E. Keith Hege, Runa Briguglio, Enrico Pinna, Alfio Puglisi, Fernando Quiros, Marco Xompero

Author Affiliations +

Proceedings Volume 8165, Unconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems; 81650L (2011) https://doi.org/10.1117/12.896564
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

We describe results from new computational techniques to extend the reach of large ground-based optical telescopes, enabling high resolution imaging of space objects under daylight conditions. Current state-of-the-art systems, even those employing adaptive optics, dramatically underperform in such conditions because of strong turbulence generated by diurnal solar heating of the atmosphere, characterized by a ratio of telescope diameter to Fried parameter as high as 70. Our approach extends previous advances in multi-frame blind deconvolution (MFBD) by exploiting measurements from a wavefront sensor recorded simultaneously with high-cadence image data. We describe early results with the new algorithm which may be used with seeing-limited image data or as an adjunct to partial compensation with adaptive optics to restore imaging to the diffraction limit even under the extreme observing conditions found in daylight.

Citation Download Citation

Michael Hart, Stuart Jefferies, Douglas Hope, E. Keith Hege, Runa Briguglio, Enrico Pinna, Alfio Puglisi, Fernando Quiros, and Marco Xompero "Multiframe blind deconvolution for imaging in daylight and strong turbulence conditions", Proc. SPIE 8165, Unconventional Imaging, Wavefront Sensing, and Adaptive Coded Aperture Imaging and Non-Imaging Sensor Systems, 81650L (13 September 2011); https://doi.org/10.1117/12.896564

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