Next: Introduction
Better HST Point-Spread Functions:
Phase Retrieval and Blind Deconvolution
Richard L. White
Space Telescope Science Institute, 3700 San Martin Drive,
Baltimore, MD 21218
Abstract:
The accuracy of HST image restorations is often limited by
the quality of point-spread functions that are available.
Phase retrieval methods are being applied to HST PSFs in an
effort to improve the agreement between observed PSFs and
PSFs computed using optical modeling programs. The use of
blind deconvolution to make better use of observed PSFs is also
discussed.
Keywords:
image restoration, Poisson statistics, Richardson-Lucy
iteration, deconvolution, Hubble Space Telescope, phase retrieval,
blind deconvolution