# Highly Nonlinear Approximations for Sparse Signal Representation

# Matlab Files

## Projectors:

- ObliProj constructs an oblique projection matrix onto the span of the columns of V along the span of the columns of Wperp
- OptObliProj regularizes the oblique projector of a give signal by truncation of singular values
- OrthProj construct an orthogonal projection matrix onto the span of the columns of D
- RegObliProj regularizes the oblique projection of a given noisy signal by truncation of singular values

All the presented routines are described in detail in our manual (ps,pdf).