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Proceedings Article

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

[+] Author Affiliations
Richard L. White, Robert J. Hanisch

Space Telescope Science Institute (USA)

Proc. SPIE 1567, Applications of Digital Image Processing XIV, 308 (December 1, 1991); doi:10.1117/12.50825
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From Conference Volume 1567

  • Applications of Digital Image Processing XIV
  • Andrew G. Tescher
  • San Diego, CA | July 21, 1991

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.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

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, 308 (December 1, 1991); doi:10.1117/12.50825; http://dx.doi.org/10.1117/12.50825


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