Quantum limits in image processing

被引：42
|
作者：
Delaubert, V. [1 ,2 ]
Treps, N. [1 ]
Fabre, C. [1 ]
Bachor, H. A. [2 ]
Refregier, P. [3 ]
机构：
[1] Univ Paris 06, Lab Kastler Brossel, Ecole Normale Super, CNRS,CC74, F-75252 Paris 05, France
[2] Australian Natl Univ, ARC Ctr Excellence Quantum Atom Opt, Canberra, ACT 0200, Australia
[3] Domaine Univ St Jerome, UMR 6133, Fresnel Inst, Phys & Image Proc Grp, F-13397 Marseille 20, France
来源：
EPL | 2008年 / 81卷 / 04期
关键词：
D O I：
10.1209/0295-5075/81/44001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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. Copyright (C) EPLA, 2008.
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页数：5
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