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).
Skip Nav Destination
Research Article| June 27 2011
Evolutionary determination of experimental parameters for ptychographical imaging
Alex Shenfield, John M. Rodenburg; Evolutionary determination of experimental parameters for ptychographical imaging. J. Appl. Phys. 15 June 2011; 109 (12): 124510. https://doi.org/10.1063/1.3600235
Download citation file:
Don't already have an account? Register
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Could not validate captcha. Please try again.