Gram-Charlier matched filter for Shack-Hartmann sensing at low light levels

Ruggiu, J.M., Solomon, Christopher J., Loos, G. (1998) Gram-Charlier matched filter for Shack-Hartmann sensing at low light levels. Optics Letters, 23 (4). pp. 235-237. ISSN 0146-9592. (doi:10.1364/OL.23.000235) (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:17074)

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/10.1364/OL.23.000235

Abstract

A study has been made of a Gram-Charlier matched filter for Shack-Hartmann sensing of wave-front slopes. The method is based on modeling the point-spread function by an expansion in terms of Gauss-Hermite polynomials. We present results for several subaperture/coherence area sizes both with and without CCD read noise. A more accurate estimation of the local slopes can be. achieved at low light levels in this way than with the standard first-moment estimator.

Item Type:	Article
DOI/Identification number:	10.1364/OL.23.000235
Subjects:	T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications T Technology > TK Electrical engineering. Electronics. Nuclear engineering
Divisions:	Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User:	Tara Puri
Date Deposited:	04 Jul 2009 12:32 UTC
Last Modified:	05 Nov 2024 09:52 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/17074 (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
CReDIT Contributor Roles:

Depositors only (login required):

Altmetric

Download Statistics

Total unique views for this document in KAR since July 2020. For more details click on the image.