Re-encoding of perceptually quantized wavelet packet transform coefficients of audio and high quality speech.
Omid GhahabiMohammad Hasan SavojiPublished in: DPS (2009)
Keyphrases
- transform coefficients
- wavelet packet
- subband
- high quality
- image coder
- filter bank
- video signals
- wavelet transform
- multiresolution
- image compression
- bit rate
- wavelet decomposition
- high frequency
- wavelet coefficients
- image quality
- transform domain
- transform coding
- reconstructed image
- wavelet domain
- image coding
- low frequency
- human visual system
- feature vectors
- reconstruction error
- frequency domain
- signal processing
- visual information
- non stationary
- visual quality
- rate distortion
- low bit rate
- bitstream
- spatial domain
- computer vision
- variable length
- denoising
- image processing