Undersampled Boundary Pre-/Postfilters for Low Bit-Rate DCT-Based Block Coders.
Lu GanChengjie TuJie LiangTrac D. TranKai-Kuang MaPublished in: IEEE Trans. Image Process. (2007)
Keyphrases
- low bit rate
- blocking artifacts
- image compression
- bit rate
- block boundaries
- image coder
- coded images
- video coder
- transform coefficients
- subband
- bit allocation
- discrete cosine transform
- reconstructed image
- video coding
- blocking effect
- rate distortion
- visual quality
- video compression
- bitstream
- compression algorithm
- entropy coding
- dct coefficients
- transform coding
- image quality
- coding method
- wavelet transform
- bit plane
- video quality
- inter frame
- compression ratio
- motion vectors
- coding efficiency
- adaptive quantization
- prediction error
- compressed images
- block size
- motion compensated
- motion compensation
- computational complexity
- multiscale
- block matching
- image processing
- filter bank
- high frequency
- post processing
- motion estimation
- image segmentation