Practical aspects of multiframe blind deconvolution for ground based telescopes

Melena Abijaoude; Timothy Schulz; David Gray; Mark Ostroot; Miguel Pineros; Timothy Holmes

doi:10.1117/12.2321285

14 November 2018 Practical aspects of multiframe blind deconvolution for ground based telescopes

Melena Abijaoude, Timothy Schulz, David Gray, Mark Ostroot, Miguel Pineros, Timothy Holmes

Proceedings Volume 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018; 1077212 (2018) https://doi.org/10.1117/12.2321285
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Recent advances in multiframe blind deconvolution of ground based telescopes are presented. The paper focuses on practical aspects of the software and algorithm. (1) A computer simulation that models atmospheric turbulence, noise and other aspects, for testing and evaluation of the deconvolution system are explained. (2) A post-processing algorithm that corrects for glint due to specular and other bright reflections is presented. This glint correction is automated by a spatially adaptive scheme that calculates statistics of brightness levels. (3) Efforts to realize computational speed, wherein processing happens on-the-fly at streaming frame rates are underway. The massively parallel processing of graphical processing units (GPUs) and the Compute Unified Device Architecture (CUDA) language are used.

Citation Download Citation

Melena Abijaoude, Timothy Schulz, David Gray, Mark Ostroot, Miguel Pineros, and Timothy Holmes "Practical aspects of multiframe blind deconvolution for ground based telescopes", Proc. SPIE 10772, Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2018, 1077212 (14 November 2018); https://doi.org/10.1117/12.2321285

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