Signal processing based segmentation and hmm based acoustic clustering of syllable segments for low bit rate segment vocoder at 1.4 Kbps.
Sadhana ChevireddyHema A. MurthyC. Chandra SekharPublished in: EUSIPCO (2008)
Keyphrases
- low bit rate
- bit rate
- signal processing
- temporal segmentation
- image segments
- speech segments
- fully unsupervised
- automatically segmented
- visual quality
- segmented regions
- homogeneous regions
- image compression
- image quality
- video coding
- video compression
- rate distortion
- rigidly moving
- video sequences
- coding method
- image processing
- image segmentation
- subband
- video quality
- segmentation algorithm
- reconstructed image
- adaptive quantization
- video codec
- bitstream
- inter frame
- hidden markov models
- filter bank
- compression algorithm
- multiscale
- motion vectors
- video objects
- feature vectors
- peak signal to noise ratio
- pattern recognition
- computational complexity
- video conferencing
- audio visual
- unsupervised learning
- prediction error
- high frequency
- motion compensated
- high quality
- n gram
- image data
- multimedia
- high dimensional data