Discrete cosine harmonic wavelet transform and its application to signal compression and subband spectral estimation using modified group delay.
S. V. NarasimhanM. HarishA. R. HaripriyaNandini BasumallickPublished in: Signal Image Video Process. (2009)
Keyphrases
- subband
- spectral estimation
- wavelet transform
- image compression
- frequency domain
- power spectrum
- wavelet filters
- high frequency
- filter bank
- wavelet coefficients
- multiresolution
- signal processing
- low frequency
- wavelet decomposition
- transform domain
- spatial domain
- wavelet domain
- fourier transform
- image coding
- multiscale
- discrete wavelet transform
- wavelet packet
- perfect reconstruction
- compression scheme
- compression ratio
- compression algorithm
- vector quantization
- lifting scheme
- reconstructed image
- transform coding
- low bit rate
- feature vectors
- transform coefficients
- image processing
- data compression
- lossless compression
- feature extraction
- image coder
- bit allocation
- reconstruction error
- image segmentation