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Optical Engineering

Error reduction in centroid estimates using nonlinear image detectors
Author(s): Manuel Perez Cagigal; M. G. Portilla; Pedro M. Prieto
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Paper Abstract

When detecting in low-light-level conditions, the dead time that appears in actual intensified image detectors increases both the systematic and the statistical error in the centroid estimate. We develop a simple technique to reduce these errors. This technique enables extending, with a good level of accuracy, the applicability of experimental methods involving the centroid measurement to those fields dealing with faint light sources.

Paper Details

Date Published: 1 October 1996
PDF: 4 pages
Opt. Eng. 35(10) doi: 10.1117/1.600974
Published in: Optical Engineering Volume 35, Issue 10
Show Author Affiliations
Manuel Perez Cagigal, Univ. de Cantabria (Spain)
M. G. Portilla, Univ. de Cantabria (Spain)
Pedro M. Prieto, Univ. de Cantabria (United States)


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