Efficient algorithm for sparse coding and dictionary learning with applications to face recognition.

Zhong Zhao Guocan Feng

Published in: J. Electronic Imaging (2015)

Keyphrases

dictionary learning
sparse coding
sparse representation
single image super resolution
sparse representation based classification
face recognition
learning algorithm
natural images

discriminative power
object category recognition
group sparsity
image representation
linear combination
image classification
motion estimation

machine learning
sparsity constraints
denoising
k means
high dimensional data
feature space
image patches

multiscale
similarity measure
unsupervised learning
high dimensional
feature extraction
sparse codes
facial expressions