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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4912
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dc.contributor.authorVyas, A-
dc.contributor.authorRoopashree, M. B-
dc.contributor.authorPrasad, B. R-
dc.date.accessioned2009-11-18T14:45:52Z-
dc.date.available2009-11-18T14:45:52Z-
dc.date.issued2009-
dc.identifier.citationProceedings of the 2009 International Conference on Advances in Recent Technologies in Communication and Computing,Kottayam, India , 27-28 October 2009, pp. 366 – 369.en
dc.identifier.isbn978-0-7695-3845-7-
dc.identifier.urihttp://hdl.handle.net/2248/4912-
dc.descriptionRestricted Access-
dc.description.abstractThe performance metrics of different centroiding algorithms at low light level conditions were optimized in the case of a Shack Hartmann Sensor (SHS) for efficient performance of the adaptive optics system. For short exposures and low photon flux, the Hartmann spot does not have a Gaussian shape due to the photon noise which follows poissonian statistics. The centroiding estimation error was calculated at different photon levels in the case of changing spot size and shift in the spot using Monte Carlo simulations. This analysis also proves to be helpful in optimizing the SHS specifications at low light levels.en
dc.language.isoenen
dc.publisherThe Institute of Electrical and Electronics Engineers, Incen
dc.relation.urihttp://dx.doi.org/10.1109/ARTCom.2009.30en
dc.rights© The Institute of Electrical and Electronics Engineers, Inc.en
dc.subjectPoisson Noiseen
dc.subjectAdaptive Opticsen
dc.subjectShack Hartmann Sensoren
dc.subjectCentroiding Algorithmsen
dc.titlePerformance of centroiding algorithms at low light level conditions in adaptive opticsen
dc.typeArticleen
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