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Appl Opt. 2006 Apr 10;45(11):2444-52.

Initialization of iterative parametric algorithms for blind deconvolution of motion-blurred images.

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Department of Electro-Optics Engineering, Ben Gurion University, Beer Sheva, Israel.


Performances of iterative blind deconvolution methods for motion-blurred images are usually reduced depending on the accuracy of the required initial guess of the blur. We examine this dependency, and a two-stage restoration procedure is proposed: First we perform a direct technique with a single straight-forward process to produce a rough initial estimate of the blur, and then an iterative technique is employed to refine the blur estimate. Two common iterative techniques (the expectation-maximization and the Richardson-Lucy methods) are examined here and implemented in the combined direct-iterative modification for a variety of motion blur types. Results show that the combined method significantly improves the reliability of the deconvolution process.

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