Effects of adaptive postfilters on the LSF quantisation for low bit rate speech coders in tandem connections.
Rodrigo C. de LamareAbraham AlcaimPublished in: ISSPA (1) (2003)
Keyphrases
- low bit rate
- bit rate
- image compression
- image coder
- visual quality
- rate distortion
- subband
- bit allocation
- vector quantization
- energy compaction
- bitstream
- coding method
- video compression
- linear predictive coding
- image quality
- vector quantizer
- computational complexity
- reconstructed image
- compression algorithm
- video coding
- coding efficiency
- adaptive quantization
- motion vectors
- coding scheme
- video quality
- speech recognition
- peak signal to noise ratio
- scalable video
- entropy coding
- bit plane
- inter frame
- compression ratio
- wavelet transform
- speech signal
- prediction error
- image segmentation
- video coder
- wavelet coefficients
- image data
- wavelet coding
- set partitioning in hierarchical trees
- learning process
- feature extraction