Soft-thresholding technique and restoration of 3C273 jet

Details Soft-thresholding technique and restoration of 3C273 jet Soft-thresholding technique and restoration of 3C273 jet

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.239..297r&link_type=abstract

Astrophysics and Space Science, Volume 239, Issue 2, pp.297-304

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

We outline the necessity of regularizing a deconvolution procedure, in the general framework of the inverse problems involved in astronomy. We show that this regularization depends in particular on a signal-to-noise ratio criterion. We concentrate on the application of the soft-thresholding statistical method for estimating the noise. We give the corresponding guidelines by commenting, from an image processing point of view, on the 2D astrophysical example of the restoration of the HST image of 3C273 optical jet.

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