Optimal precision of parameter estimation in images with local sub-Poissonian quantum fluctuations J. Fade, N. Treps, C. Fabre and P. Réfrégier Eur. Phys. J. D, 50 2 (2008) 215-227 Published online: 05 November 2008 DOI: 10.1140/epjd/e2008-00211-3