Image sharpening of time-tagged counts from a photon counting detector - Application of a modified Wiener filter

Bibcode
1989MNRAS.238..791R
Redfern, R. M.; Devaney, M. N.; O'Kane, P.; Ballesteros Ramirez, E.; Gomez Renasco, R.; Rosa, F.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, May 15, 1989, p. 791-806. Research supported by the University College Galway, Mayo County Council, Irish Department of Education, and Dublin Institute for Advanced Studies.

Advertised on:
5
1989
Number of authors
6
IAC number of authors
2
Citations
7
Refereed citations
7
Description
A method for applying a modified Wiener filter to time-tagged single photon data is proposed which can preprocess the data for use by a wide range of image sharpening algorithms. The method is applied to data from the 50-cm Roque de los Muchachos Observatory telescope, resulting in near diffraction limited images of the bright triple-star system ADS6650 with a high dynamic range at extremely low counting rates. The method can be used, with a 1.5-m telescope, for fields containing reference stars as faint as 16.75 mag.
Type
Refereed
Telescopes

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