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Proceedings Paper

HST image processing: how does it work and what are the problems?
Author(s): Richard L. White; Robert J. Hanisch
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Paper Abstract

The spherical aberration of the primary mirror of the Hubble Space Telescope has seriously reduced the sensitivity and degraded the resolution of images and spectra from the instruments onboard the satellite. In this paper, we describe the nature of the aberration problem and the resulting point-spread functions for both the imaging and spectrographic detectors. A number of image restoration algorithms have been evaluated for use on HST data, including both linear and non-linear techniques, and sample results are shown for a modified Richardson- Lucy method. The best prospects for obtaining improvements in the restored images are likely to derive from developing techniques for adaptive regularization.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1567, Applications of Digital Image Processing XIV, (1 December 1991); doi: 10.1117/12.50825
Show Author Affiliations
Richard L. White, Space Telescope Science Institute (United States)
Robert J. Hanisch, Space Telescope Science Institute (United States)

Published in SPIE Proceedings Vol. 1567:
Applications of Digital Image Processing XIV
Andrew G. Tescher, Editor(s)

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