HST image processing: how does it work and what are the problems?

Richard L. White; Robert J. Hanisch

doi:10.1117/12.50825

1 December 1991 HST image processing: how does it work and what are the problems?

Richard L. White, Robert J. Hanisch

Author Affiliations +

Proceedings Volume 1567, Applications of Digital Image Processing XIV; (1991) https://doi.org/10.1117/12.50825
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

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Richard L. White and Robert J. Hanisch "HST image processing: how does it work and what are the problems?", Proc. SPIE 1567, Applications of Digital Image Processing XIV, (1 December 1991); https://doi.org/10.1117/12.50825

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