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On an Efficient Sparse Representation of Objects of General Shape via Continuous Extension and Wavelet Approximation.
Naoki Saito
Zhihua Zhang
Published in:
Int. J. Wavelets Multiresolution Inf. Process. (2010)
Keyphrases
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sparse representation
dictionary learning
sparse approximations
face recognition
compressive sensing
image classification
sparse coding
image representation
compressed sensing
random projections
image patches
wavelet transform
reconstruction error
denoising
object tracking
multiresolution
signal processing
d objects
norm minimization
data sets
high dimensional data
negative matrix factorization
piecewise smooth
joint optimization
test images
pattern recognition
piecewise constant
sparse coefficients