# Highly Nonlinear Approximations for Sparse Signal Representation

# Effective sparse representation of X-Ray medical images

High sparsity in the representation of X-Ray medical images is achieved by: (a) Creating a large redundant dictionary of suitable elements for the image decomposition in the wavelet domain and (b) Applying effective strategies for selecting the particular elements which enable the sparse decomposition of the wavelet coefficients.

by Laura Rebollo-Neira