Clean and Wipe

Details Clean and Wipe Clean and Wipe

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..123..183l&link_type=abstract

A & A Supplement series, Vol. 123, May II 1997, 183-198.

Astronomy and Astrophysics

Astronomy

14

Methods: Data Analysis, Numerical, Techniques: Image Processing, Interferometric

Scientific paper

Clean is a matching pursuit process which has two weak points: in situations of astrophysical interest, the ``clean map" is not stable in the corresponding object representation space, and the ``atoms" of this representation (translated versions of the ``clean beam") are not well suited for reconstructing the boundaries of the structuring entities of the object at the related resolution level. As a result, Clean must be interrupted before the best possible fit is reached. How does Wipe wipe Clean clean? First, by introducing a global regularization principle based on the concept of resolution; and second, by conducting the matching pursuit process at the level of the high-resolution basis functions of the object space.

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