Keyphrases
- random projections
- filter bank
- image coding
- subband
- random sampling
- sampling methods
- multiresolution
- dimensionality reduction
- multiscale
- wavelet packet
- signal processing
- perfect reconstruction
- image reconstruction
- sparse representation
- dimension reduction
- frequency domain
- original data
- computationally efficient
- principal component analysis
- nearest neighbor
- low dimensional
- hash functions
- similarity measure
- image compression
- wavelet filters
- high dimensionality
- high dimensional
- discrete cosine transform
- high resolution
- data analysis
- feature space
- feature vectors
- data sets
- active learning
- least squares
- bit rate