A simple test to check the optimality of sparse signal approximations.

Rémi Gribonval Rosa M. Figueras i Ventura Pierre Vandergheynst

Published in: ICASSP (5) (2005)

Keyphrases

compressive sensing
signal reconstruction
signal recovery
high frequency
objective function
optimal solution
signal processing
frequency domain
image reconstruction
closed form
sparse data
compressive sampling
linear shift invariant