Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...208..327d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 208, no. 1-2, Jan. 1989, p. 327-330.
Astronomy and Astrophysics
Astrophysics
5
Comet Nuclei, Halley'S Comet, Image Processing, Jupiter (Planet), Vega Project, Brightness Distribution, Charge Coupled Devices, Iterative Solution, Pixels, Point Spread Functions, Comets, Vega 1 Mission, Imagery, Comet Nuclei, Halley, Techniques, Jetting, Image Processing, Spacecraft Observations, Tvs Instrument, Procedure, Photographs
Scientific paper
A method for image restoration of the Vega-1 pictures of Halley's comet nucleus by using the modified constrained Jansson-Van Cittert deconvolution algorithm is presented. The method is first applied to compute the Point Spread Function (PSF) from observations of Jupiter, then with this computed PSF to the comet nucleus images themselves. On the resulting pictures, the contours of the illuminated part of the nucleus are much more clearly seen than on original pictures. Fine dust jets are discovered starting right from the surface of the nucleus.
Abergel Alain
Bertaux Jean Loup
Dimarellis Emmanuel
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