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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4298
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dc.contributor.authorKrishnakumar, V-
dc.contributor.authorVenkatakrishnan, P-
dc.date.accessioned2009-01-29T14:22:20Z-
dc.date.available2009-01-29T14:22:20Z-
dc.date.issued1998-
dc.identifier.citationR. A. Donahue and J. A. Bookbinder., eds., The Tenth Cambridge Workshop on Cool Stars, Stellar Systems and the Sun, 2003, pp. CD 2003 - CD 2007en
dc.identifier.urihttp://hdl.handle.net/2248/4298-
dc.description.abstractThe functional form of the long exposure OTF P(u,v) is known (Fried 1966; Kirshnakumar & Venkatakrishnan 1997a) and i(x,y) is what we record. The knowledge of P(u,v) is complete once ro is estimated. Our aim is to recover oe(x,y) which is close to o(x,y). We present here the results of estimation of Fried's parameter ro using a parameter search method (Kirshnakumar & Venkatakrishnan 1997b) and an modified Wiener filter (U filter) (Roddier 1981) for image restoration. The estimation of ro and restoration using the U filter on simulations and images of an extended stellar source, globular cluster NGC 1409, is presented.en
dc.language.isoenen
dc.publisherAstronomical Society of the Pacificen
dc.relation.ispartofseriesAstronomical Society of the Pacific Conference Series, Vol. 154-
dc.relation.urihttp://adsabs.harvard.edu/abs/1998ASPC..154.2003Ken
dc.subjectImage Processingen
dc.subjectImage Restorationen
dc.subjectPoint Spread Functionen
dc.titleHigh resolution imaging of the sun and other extended sourcesen
dc.typeArticleen
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