Sparse representation over learned dictionary for symbol recognition.

Thanh-Ha Do Salvatore Tabbone Oriol Ramos Terrades

Published in: Signal Process. (2016)

Keyphrases

symbol recognition
sparse representation
learned dictionary
sparse coding
dictionary learning
compressive sensing
feature selection
face recognition
image patches
image classification
document image analysis
signal processing
random projections
joint optimization
image representation
high dimensional data
dimensionality reduction
image processing
feature extraction
image segmentation
data sets
document images