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CLEAN (algorithm)

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This is an old revision of this page, as edited by Mission Fleg (talk | contribs) at 07:35, 2 November 2008 (is that clearer? these statements need references. and no it aint enough to say use google.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

The CLEAN algorithm is a computational algorithm to perform a deconvolution on images created in radio astronomy. It was published by Jan Högbom in 1974 [citation needed] and several variations have been proposed since [citation needed].

The algorithm assumes that the image consists of a number of point sources. It will iteratively find the highest value in the image and subtract a small gain of this point source convolved with the point spread function ("dirty beam") of the observation, until the highest value is smaller than some threshold.

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