Perceptual postfilter estimation for low bit rate speech coders using Gaussian mixture models.
Wei ChenPeter KabalTuraj Zakizadeh ShabestaryPublished in: INTERSPEECH (2005)
Keyphrases
- low bit rate
- bit rate
- image compression
- image coder
- visual quality
- subband
- image quality
- filter bank
- bit allocation
- human visual system
- rate distortion
- coding method
- video coding
- bitstream
- reconstructed image
- bit plane
- motion vectors
- inter frame
- coding scheme
- video compression
- adaptive quantization
- compression algorithm
- video quality
- coding efficiency
- macroblock
- image coding
- computational complexity
- compression ratio
- video conferencing
- video coder
- audio visual
- discrete cosine transform
- peak signal to noise ratio
- image processing
- frequency domain
- image classification
- wavelet transform