Optimization of Existing Centroiding Algorithms for Shack Hartmann Sensor
Instrumentation and Methods for Astrophysics
2009-09-01 v1
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.
Keywords
Cite
@article{arxiv.0908.4328,
title = {Optimization of Existing Centroiding Algorithms for Shack Hartmann Sensor},
author = {Akondi Vyas and M B Roopashree and B R Prasad},
journal= {arXiv preprint arXiv:0908.4328},
year = {2009}
}
Comments
6 pages, 14 figures, Proceeding of the National Conference on Innovative Computational Intelligence & Security Systems, Sona College of Technology, Salem. Apr 3-4, 2009. pp 400-405