Sparse Hierarchical Preconditioners Using Piecewise Smooth Approximations of Eigenvectors.

Bazyli Klockiewicz Eric Darve

Published in: CoRR (2019)

Keyphrases

piecewise smooth
sparse representation
piecewise constant
gaussian noise
mumford shah functional
image restoration
mumford shah
high dimensional
principal component analysis
signal processing
diffusion equation
face recognition
multiscale
object recognition
image enhancement
energy functional