Statistics – Applications
Scientific paper
Mar 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976sci...191.1237f&link_type=abstract
Science, vol. 191, Mar. 26, 1976, p. 1237-1241.
Statistics
Applications
5
Digital Techniques, Ganymede, Image Enhancement, Pioneer 10 Space Probe, Computer Techniques, Data Sampling, Imaging Techniques, Optical Data Processing, Space Exploration, Spaceborne Photography
Scientific paper
The paper discusses results of an attempt to restore two blurred pictures of Ganymede taken by Pioneer 10 through a blue filter and a red filter. The mathematical formulation of the restoration problem is outlined, it is noted that both conventional linear filtering and the maximum-entropy algorithm were employed as restoration techniques, and the two methods are described. The original blurred pictures are reproduced along with the two restorations of each image. The restored images are found to exhibit some mare-like features as well as a few large bright rings, possibly ice ridges. The results obtained with the two restoration techniques are compared, and it is concluded that the maximum-entropy method is more advantageous than linear methods in applications to moderately extended images.
Frieden Roy B.
Swindell W.
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