Image Registration; The Undersampled Case

The registration of a multi-frame sequence of images has been a classic problem in image processing whose solution has found wide application in such diverse areas as astronomy, earth resource analysis, electron microscopy, computed-aided medical imaging, military surveillance and photo-reconnaissance. In the most general sense, precise image registration allows such subsequent processing as signal-to-noise improvement, pattern enhancement and characterization, and the automated detection of spatio-temporally varying patterns, to be carried out at a level that would be impossible if the image sequence were not accurately registered.