Description
This package implements a method for CTF determination and correction in electron tomography. The approach to CTF detection and defocus determination is based on strip-based periodogram averaging, extended throughout the tilt series to overcome the low contrast conditions found in cryoET, together with a spline-based strategy for background subtraction. The method of CTF correction deals with the defocus gradient in images of tilted specimens by decomposing the global restoration problem into multiple local spatially-invariant problems.
A detailed description of the procedures implemented in the package are in the following article:
CTF determination and correction in electron cryotomography
J.J. Fernandez, S. Li, R.A. Crowther
Ultramicroscopy 106:587-596, 2006.
http://dx.doi.org/10.1016/j.ultramic.2006.02.004
Please, cite this article if you use TomoCTF in your works.