Efficient Shift-Invariant Dictionary Learning.
Guoqing ZhengYiming YangJaime G. CarbonellPublished in: KDD (2016)
Keyphrases
- shift invariant
- sparse coding
- dictionary learning
- sparse representation
- natural images
- image representation
- linear combination
- unsupervised learning
- wavelet domain
- image classification
- rotation invariant
- signal processing
- image data
- low dimensional
- image processing
- higher order
- wavelet coefficients
- discrete wavelet transform
- probabilistic model
- feature extraction