✦ LIBER ✦

An Iterative Projection Technique for Blind Image Restoration

✍ Scribed by Shyh-Shiaw Kuo; Richard J. Mammone

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 642 KB
Volume: 4
Category: Article
ISSN: 1047-3203
DOI: 10.1006/jvci.1993.1008

No coin nor oath required. For personal study only.

✦ Synopsis

A new iterative algorithm is presented for restoring noisy blurred images where the point spread function (PSF) is unknown. The method initially estimates the PSF and the original image using the Expectation Maximization (EM) method. The resulting image estimate is then refined by using the adaptive Row Action Projection (RAP) algorithm, which is based on the theory of Projection Onto Convex Sets (POCS). The new implementation of the RAP algorithm can be performed efficiently in parallel and facilitates locally adaptive constraints and cycling strategies. Computer simulations illustrate the new method to be very competitive in restoring noisy degraded images with unknown PSF. O 1993 Academk Pres, Inc.

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