Ruggiu, J.M., Solomon, Christopher J. (1997) Improved technique for centroiding in Shack-Hartmann sensing at low light level. In: Proceedings of SPIE - The International Society for Optical Engineering. 3126. pp. 545-550. ISBN 0277786X. (doi:10.1117/12.290170) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:48551)
| The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
| Official URL: http://dx.doi.org/10.1117/12.290170 |
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| Additional URLs: |
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Abstract
A study has been made of a Shack-Hartman sensor utilising a Charge Coupled Device (CCD) array and of an alternative approach to estimating the centroid. This is based on modelling the Point Spread Function (PSF) by a Gram-Charlier type expansion type, we will present results for different levels of Kolmogorov turbulence with and without CCD read noise. Our high-fidelity computer simulation demonstrates that more accurate estimation of the PSF centroid may be achieved at low light level as compared to the standard center of gravity estimation.
| Item Type: | Conference or workshop item (Paper) |
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| DOI/Identification number: | 10.1117/12.290170 |
| Additional information: | Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Proc SPIE Int Soc Opt Eng [Field not mapped to EPrints] AD - Physics Department, University of Kent, Canterbury, Kent CT2 7NR, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints] A4 - SPIE [Field not mapped to EPrints] C3 - Proceedings of SPIE - The International Society for Optical Engineering [Field not mapped to EPrints] |
| Uncontrolled keywords: | Centroiding, Estimation, Gram-Charlier expansion, Hartmann sensor, Adaptive optics, Charge coupled devices, Computer simulation, Optical transfer function, Centroiding, Wavefront sensors, Optical sensors |
| Subjects: | Q Science |
| Institutional Unit: | Schools > School of Engineering, Mathematics and Physics > Physics and Astronomy |
| Former Institutional Unit: |
Divisions > Division of Natural Sciences > Physics and Astronomy
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| Depositing User: | Giles Tarver |
| Date Deposited: | 21 May 2015 10:20 UTC |
| Last Modified: | 20 May 2025 09:37 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/48551 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Solomon, Christopher J..
| Creator's ORCID: |
 https://orcid.org/0000-0002-5057-4614
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| CReDIT Contributor Roles: |
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