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Simultaneous Phase Retrieval and Deblurring for the Hubble Space Telescope

Next: Introduction

Simultaneous Phase Retrieval and Deblurring for the Hubble Space Telescope

Timothy J. Schulz and Stephen C. Cain

Michigan Technological University, Houghton, MI 49931-1295

Abstract:

Most methods proposed for restoring images acquired by the Hubble Space Telescope rely on prior knowledge of the telescope's point-spread function; however, for many images, this function is not known precisely and must be inferred from the noisy measured data. In this paper, we address this problem and discuss a maximum-likelihood estimation technique for simultaneously determining the nature of the aberrations and for recovering the underlying object from a noisy, degraded image.

Keywords: blind deconvolution, deblurring, phase retrieval

rlw@sundog.stsci.edu
Mon Apr 18 09:34:19 EDT 1994