Edge adapted nonlinear multiscale transforms for compact image representation
Francesc Aràndiga, Albert Cohen, Doblas, Basarab Mateï · 2004
We introduce nonlinear edge-adapted multiresolution transforms for image processing. These transforms have the same structure as wavelet basis decompositions, but incorporate a specific geometric treatment of edges, which results in sparser representations of piecewise smooth images and in turn better compression properties. We also observe visual improvements over classical wavelets for the compression of real images.