Shift-invariant dictionary learning for sparse representations: Extending K-SVD.
Boris MailhéSylvain LesageRémi GribonvalFrédéric BimbotPierre VandergheynstPublished in: EUSIPCO (2008)
Keyphrases
- shift invariant
- sparse coding
- dictionary learning for sparse
- dictionary learning
- sparse representation
- natural images
- image classification
- linear combination
- unsupervised learning
- generative model
- image representation
- image patches
- rotation invariant
- wavelet domain
- wavelet coefficients
- visual words
- discrete wavelet transform
- feature space
- pattern recognition
- face recognition
- wavelet transform
- high dimensional
- object recognition
- bag of words
- high dimensional data
- input image
- blurred images
- data sets