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Quantum limits in image processing

Delaubert, V; Treps, Nicolas; Fabre, Claude; Bachor, Hans; Refregier, P.

Description

We determine the limit to the maximum achievable sensitivity in the estimation of a scalar parameter from the information contained in an optical image in the presence of quantum noise. This limit, based on the Cramer-Rao bound and valid for any image processing protocol, is calculated for a shot noise limited image, for a locally squeezed light, and for a single-mode squeezed light in a well-defined "noise mode". In addition, we exhibit an image processing protocol that allows us to reach the...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/17640
Source: Europhysics Letters
DOI: 10.1209/0295-5075/81/44001

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