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A fast atom selection method based on the order of initial inner product values for image denoising using sparse representation.
Kousuke Imamura
Kaoru Itoh
Yoshio Matsuda
Published in:
ISPACS (2015)
Keyphrases
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sparse representation
em algorithm
similarity measure
multiscale
dimension reduction
reconstruction error
negative matrix factorization
joint optimization
face recognition
object recognition
principal component analysis
image classification
sparse coding
random projections