Evolutionary determination of experimental parameters for ptychographical imaging

SHENFIELD, Alex and RODENBURG, John (2011). Evolutionary determination of experimental parameters for ptychographical imaging. Journal of Applied Physics, 109 (12), p. 124510.

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Link to published version:: 10.1063/1.3600235


The Ptychographical Iterative Engine (PIE) algorithm is a recently developed novel method of Coherent Diffractive Imaging (CDI) that uses multiple overlapping diffraction patterns to reconstruct an image. This method has successfully produced high quality reconstructions at both optical and X-ray wavelengths but the need for accurate knowledge of the probe positions is currently a limiting factor in the production of high resolution reconstructions at electron wavelengths. This paper examines the shape of the search landscape for producing optimal image reconstructions in the specific case of electron microscopy and then shows how evolutionary search methods can be used to reliably determine experimental parameters in the electron microscopy case (such as the spherical aberration in the probe and the probe positions).

Item Type: Article
Research Institute, Centre or Group: Cultural Communication and Computing Research Institute > Communication and Computing Research Centre
Identification Number: 10.1063/1.3600235
Depositing User: Alex Shenfield
Date Deposited: 07 Aug 2014 09:16
Last Modified: 20 Aug 2015 06:01
URI: http://shura.shu.ac.uk/id/eprint/8311

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