Quantum limits in image processing

V. Delaubert*, N. Treps, C. Fabre, H. A. Bachor, P. Réfrégier

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    44 Citations (Scopus)

    Abstract

    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 limits in the different cases.

    Original languageEnglish
    Article number44001
    JournalEurophysics Letters
    Volume81
    Issue number4
    DOIs
    Publication statusPublished - 1 Feb 2008

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