TomoJ
ImageJ plugin to perform Electron Tomography
...TomoJ is written in Java, the computations are multithreaded and reconstruction can be performed on CPU or GPU (OpenCL).
registration is described in:
Journal of Structural Biology: X. 2020, Volume 4. "Improvements on marker-free images alignment for electron tomography" C.O.S. Sorzano et al. https://doi.org/10.1016/j.yjsbx.2020.100037.
BMC Bioinformatics. 2009 Apr 27;10:124."Marker-free image registration of electron tomography tilt-series." C.O.S. Sorzano et al.
reconstruction part was described in:
BMC Bioinformatics. 2007 Aug 6;8:288. ...