Keyphrases
- subband
- high frequency
- filter bank
- image compression
- wavelet transform
- adaptive wavelet
- locally adaptive
- multiresolution
- bit rate
- energy compaction
- wavelet coefficients
- feature vectors
- frequency domain
- low frequency
- wavelet decomposition
- subband coding
- discrete wavelet transform
- wavelet domain
- subband decomposition
- low pass
- perfect reconstruction
- scalar quantization
- image coding
- contourlet transform
- image coder
- non subsampled contourlet transform
- wavelet coding
- wavelet packet
- multiscale
- signal processing
- vector quantization
- visual quality
- reconstruction error
- transform coefficients
- frequency band
- subband image coding
- lifting scheme
- compression algorithm
- directional information
- wavelet subbands
- spatial domain
- rate distortion
- video coding
- wavelet transform coefficients
- feature extraction