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Title: SYSTEMATIC DE-SATURATION OF IMAGES FROM THE ATMOSPHERIC IMAGING ASSEMBLY IN THE SOLAR DYNAMICS OBSERVATORY

Extreme ultraviolet (EUV) images of solar flares provided by the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) are often affected by saturation effects in their core, physically most interesting, region. We introduce an image reconstruction procedure that allows recovering information in the primary saturation domain using the secondary images produced by the diffraction fringes as input data. Such a procedure is based on standard image-processing tools like correlation, convolution, and back-projection. Its effectiveness is tested in the case of AIA/SDO observations of the 2013 July 8 flaring event.
Authors:
 [1] ; ;  [2]
  1. NASA Goddard Space Flight Center and Catholic University of America, Greenbelt, MD 20771 (United States)
  2. Dipartimento di Matematica, Università di Genova and CNR-SPIN, Genova, via Dodecaneso, 35 I-16146 Genova (Italy)
Publication Date:
OSTI Identifier:
22364973
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 793; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; CORRELATIONS; DIFFRACTION; EXTREME ULTRAVIOLET RADIATION; IMAGE PROCESSING; IMAGES; SOLAR FLARES; SUN