Simple alignment based iterative subtomogram averaging

[xulabs]

to be added to aitom.average.align.simple_iterative.average

[xulabs]

Example code can be found at
aitom/tomominer/average/genetic_algorithm/aligned_refine
aitom/tomominer/pursuit/multi/util.vol_avg__local

https://github.com/alberlab/tomominer/blob/master/bin/tm_average

To fully utilize all cpu cores, need to be parallelized using multiprocessing
A wrapper function can be found here:
aitom.parallel.multiprocessing.util

[xiangruz]

Alignment based classification

[xulabs]

Alignment based classification method, see following paper

Xu M, Beck M, Alber F. High-throughput subtomogram alignment and classification by Fourier space constrained fast volumetric matching. Journal of Structural Biology. 2012 May;178(2):152-64. Epub 2012 Mar 7.