A frequency-domain video transcoder for dynamic bit-rate reduction of MPEG-2 bit streams.
Pedro A. Amado AssunçãoMohammed GhanbariPublished in: IEEE Trans. Circuits Syst. Video Technol. (1998)
Keyphrases
- frequency domain
- bitstream
- compressed video
- bit rate
- subband
- pixel domain
- video quality
- compressed domain
- video signals
- spatial domain
- dct domain
- video coding
- rate distortion
- coding scheme
- compression algorithm
- video transmission
- visual quality
- motion vectors
- macroblock
- filter bank
- transform domain
- dct coefficients
- coding efficiency
- data hiding
- image quality
- scalable video
- wavelet coefficients
- inter frame
- low frequency
- denoising
- error resilient
- video conferencing
- video sequences
- compressed images
- low bit rate
- high frequency
- video content
- computational complexity
- feature extraction
- error concealment
- error resilience
- compression efficiency
- video frames
- coding method
- motion compensated
- error propagation
- video coder
- high quality
- bit allocation
- motion estimation
- bit plane
- rate control
- video streams
- video compression
- video analysis
- multiscale
- image data
- video coding standard
- video codec
- digital video
- selection algorithm
- frame rate