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Paper: Restoration of Digitized Astronomical Plates with the Pixon Method
Volume: 295, Astronomical Data Analysis Software and Systems XII
Page: 407
Authors: Hiltner, P. R.; Kroll, P.; Nestler, R.; Franke, K.-H.
Abstract: We report applications of the Pixon Restoration Method to digitized plates of the Sonneberg Plate Archive -- the world's 2nd largest. Results so far obtained show that the severe astigmatism/coma distortion present in the outer parts of the wide field images can be almost completely removed. Object definition (FHWM) of point sources and S/N also improve by factors of 2 to 7, depending on the object strength and location, background etc. We briefly address implications for the inclusion of digitized archives in the virtual observatory context.
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