vix.ing · top · new · best · stats · spec

Noise limits in the assembly of diffraction data

2007/09/25 by Veit Elser, Elser, Veit
Physics and Astronomy · #Computational Physics (physics.comp-ph) #FOS: Physical sciences #physics.comp-ph

paper · pdf · doi:10.48550/arxiv.0709.3858

4 pages, 3 figures

arxiv created 2007/09/25 · arxiv updated 2009/12/01

Abstract

We obtain an information theoretic criterion for the feasibility of assembling diffraction signals from noisy tomographs when the positions of the tomographs within the signal are unknown. For shot-noise limited data, the minimum number of detected photons per tomograph for successful assembly is much smaller than previously believed necessary, growing only logarithmically with the number of resolution elements of the diffracting object. We also demonstrate assembly up to the information theoretic limit with a constraint-based algorithm.

Related