Image representation based on the affine symmetry group

A.D. Calway
Proceedings of 3rd IEEE International Conference on Image Processing  
The representation of 2-D signals which are symmetric under the a ne group of transformations is considered. An extension of the Multiresolution Fourier Transform MFT is presented and shown to have a predictable redistribution of energy as a result of a ne transformations of the input signal. An approximation based on the discrete MFT then forms the basis of a computationally e cient algorithm for estimating local a ne coordinate transformations between pairs of image regions. Results of
more » ... g the technique to an image registration problem illustrate its potential.
doi:10.1109/icip.1996.560416 dblp:conf/icip/Calway96 fatcat:4apev7lqhnby3myfe5glzwna4a