Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...448.1217a&link_type=abstract
Astronomy and Astrophysics, Volume 448, Issue 3, March IV 2006, pp.1217-1224
Astronomy and Astrophysics
Astrophysics
8
Methods: Data Analysis, Methods: Numerical
Scientific paper
Our approach proposed in a previous paper for the reduction of boundary effects in the deconvolution of astronomical images by the Richardson-Lucy method (RLM) is extended here to the problem of multiple image deconvolution and applied to the reconstruction of the images of LINC-NIRVANA, the German-Italian beam combiner for the Large Binocular Telescope (LBT). We investigate the multiple image RLM, its accelerated version ordered subsets expectation maximization (OSEM), and the regularized versions of these twomethods. In addition we show how the approach can be extended to the iterative space reconstruction algorithm (ISRA), which is an iterative method converging to non-negative least squares solutions. Numerical simulations indicate that the approach can provide excellent results with aconsiderable reduction of the boundary effects.
Anconelli Barbara
Bertero Mario
Boccacci Patrizia
Carbillet Marcel
Lanteri Henri
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