On the optimality of nonunitary filter banks in subband coders.
Sven Ole AaseTor A. RamstadPublished in: IEEE Trans. Image Process. (1995)
Keyphrases
- subband
- filter bank
- image coding
- wavelet transform
- image compression
- bit rate
- multiresolution
- image coder
- perfect reconstruction
- high frequency
- frequency domain
- wavelet coefficients
- wavelet decomposition
- wavelet packet
- feature vectors
- subband coding
- image coding scheme
- low pass
- wavelet domain
- low frequency
- discrete wavelet transform
- wavelet filter banks
- reconstruction error
- subband image coding
- discrete cosine transform
- lifting scheme
- bitstream
- frequency band
- visual quality
- wavelet filters
- spatial domain
- transform coefficients
- feature extraction
- wavelet subbands
- multiscale
- synthesis filters
- multiscale decomposition
- quadrature mirror
- finite impulse response
- directional information
- low bit rate
- reconstructed image
- compression algorithm
- rate distortion
- vector quantization