A method to remove fringes from images using wavelets

Author	dc.contributor.author	Rojo, P.
Author	dc.contributor.author	Harrington, Joseph	es_CL
Admission date	dc.date.accessioned	2009-06-30T15:56:07Z
Available date	dc.date.available	2009-06-30T15:56:07Z
Publication date	dc.date.issued	2006-09-20
Cita de ítem	dc.identifier.citation	ASTROPHYSICAL JOURNAL Volume: 649 Issue: 1 Pages: 553-560 Part: Part 1 Published: SEP 20 2006	en
Identifier	dc.identifier.issn	0004-637X
Identifier	dc.identifier.uri	https://repositorio.uchile.cl/handle/2250/125027
Abstract	dc.description.abstract	We have developed a new method that uses wavelet analysis to remove interference fringe patterns from images. This method is particularly useful for flat fields in the common case where fringes vary between the calibration and object data. We analyze the efficacy of this method by creating fake flats with fictitious fringes and removing the fringes. We find that the method removes 90% of the fringe pattern if its amplitude is equal to the random noise level and 60% if the fringe amplitude is approximate to 1/10 of the noise level. We also present examples using real flat-field frames. A routine written in IDL that implements this algorithm is available from the authors and as an attachment to this paper.	en
Lenguage	dc.language.iso	en	en
Publisher	dc.publisher	UNIV CHICAGO PRESS	en
Keywords	dc.subject	SPECTROGRAPH	en
Título	dc.title	A method to remove fringes from images using wavelets	en
Document type	dc.type	Artículo de revista