translation, rotation, etc.?
============================

See: 

   Bishop, C.M. (1995), Neural Networks for Pattern Recognition, Oxford:
   Oxford University Press, section 8.7. 

   Masters, T. (1994), Signal and Image Processing with Neural Networks: A
   C++ Sourcebook, NY: Wiley. 

   Soucek, B., and The IRIS Group (1992), Fast Learning and Invariant Object
   Recognition, NY: Wiley. 

   Squire, D. (1997), Model-Based Neural Networks for Invariant Pattern
   Recognition, http://cuiwww.unige.ch/~squire/publications.html 

   Laurenz Wiskott, bibliography on "Unsupervised Learning of Invariances in
   Neural Systems" 
   http://www.cnl.salk.edu/~wiskott/Bibliographies/LearningInvariances.html