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ENH: Processing of fluctuation electron microscopy data

Andrew Herzing requested to merge aaherzing/pixstem:FEM_Integration into master

Perform analysis of fluctuation electron microscopy (FEM) data as outlined in:

T. L. Daulton, et al., Ultramicroscopy 110 (2010) 1279-1289. (doi:10.1016/j.ultramic.2010.05.010)

Analysis returns a dictionary containing:

  • the normalized variance of the annular mean (V-Omegak)

  • mean of normalized variances of rings (V-rk)

  • normalized variance of ring ensemble (Vrek)

  • the normalized variance image (Omega-Vi)

  • annular mean of the variance image (Omega-Vk)

Calculations rely heavily on the fpd_data_processing radial_integration function. This function has been slightly modified so as to allow a normalized output (default) and a non-normalized output.

Processing of lazy signals is quite slow especially for large datasets. This can very likely be further optimized.

Edited by Andrew Herzing

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