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Astronomy Colloquium (2019 Fall Semester)

* Date
Oct. 10
* Speaker
Dr. Michiel van Noort (Max-Planck Institute for solar system research),
* Title
Image restoration of solar data using multi frame blind deconvolution
* Abstract

When observing the Sun using ground based solar telescopes, atmospheric turbulence,
resulting from heating of the Earths atmosphere by the Sun, causes severe blurring of
image data in the spatial dimensions. In spite of tremendous progress made in the
development of adaptive optics (AO) systems to correct telescope images for this effect,
residual image degradations remain a significant factor, limiting the spatial resolution
that can be achieved. Multi-Frame Blind Deconvolution (MFBD) is one of a family of
numerical techniques that model and remove these residual image degradations, allowing
observers to increase the amount of information they can extract from their data.
In this talk, I will introduce the basic ideas behind MFBD, and describe how recent
increases in the available computing resources to the solar physics community has
helped to broaden the application area of this technique, how this can be used to
enhance traditional observing techniques, and in what way this is driving the design
of new instrumentation.