Perceptual Evaluation of a New Subband Low Bit Rate Speech Compression System based on Waveform Vector Quantization and SVD Postfiltering.
Stavroula-Evita FotineaIoannis DologlouStylianos BakamidisGregory StainhaouerGeorge CarayannisPublished in: LREC (2000)
Keyphrases
- image compression
- low bit rate
- vector quantization
- subband
- blocking artifacts
- frequency domain
- compression ratio
- compression scheme
- compression algorithm
- wavelet transform
- filter bank
- image coder
- wavelet coding
- high frequency
- vector quantizer
- subband coding
- bit allocation
- coded images
- wavelet coefficients
- reconstructed image
- video codec
- discrete cosine transform
- compressed images
- distortion measure
- lossless compression
- transform coding
- image coding
- scalar quantization
- image processing
- entropy coding
- bit rate
- coding method
- spatial domain
- human visual system
- transform coefficients
- video signals
- compression efficiency
- face recognition