Optimization of existing centroiding algorithms for Shack Hartmann sensor

dc.contributor.author	Vyas, A
dc.contributor.author	Roopashree, M. B
dc.contributor.author	Prasad, B. R
dc.date.accessioned	2009-09-11T16:29:58Z
dc.date.available	2009-09-11T16:29:58Z
dc.date.issued	2009
dc.identifier.citation	Proceeding of the National Conference on Innovative Computational Intelligence & Security Systems, Sona College of Technology, Salem. April 3 - 4, 2009. pp. 400 - 405	en
dc.identifier.uri	http://hdl.handle.net/2248/4816
dc.description.abstract	Three centroiding techniques to estimate the position of the spots in a Shack Hartmann sensor: Normalized Centre of Gravity (CoG), Iteratively Weighted Centre of Gravity (IWCoG) and Intensity Weighted (IWC) centroiding are studied in comparison. The spot pattern at the focal plane of a Shack Hartmann sensor was simulated by including the effect of a background noise. We present the results of optimization of the performance of each of the centroiding techniques as a function of Signal to Noise Ratio (SNR) at different experimental conditions.	en
dc.language.iso	en	en
dc.relation.uri	http://arxiv1.library.cornell.edu/abs/0908.4328	en
dc.subject	Shack Hartmann Sensor	en
dc.subject	Centroiding Algorithms	en
dc.subject	Centroid Estimation Error	en
dc.subject	Astrophysics	en
dc.subject	Instrumentation and Methods for Astrophysics	en
dc.title	Optimization of existing centroiding algorithms for Shack Hartmann sensor	en
dc.type	Article	en