Sequential DCT coefficients estimation for postprocessing of DCT-coded image sequence.
Koichi FukudaAkira KawanakaPublished in: SIP (2001)
Keyphrases
- post processing
- dct domain
- dct coefficients
- blocking artifacts
- discrete cosine transform
- coded images
- image sequences
- displaced frame difference
- transform domain
- preprocessing
- compressed domain
- jpeg images
- reconstructed image
- compressed images
- video sequences
- image compression
- motion estimation
- discrete cosine transformation
- low frequency
- image quality
- watermarking algorithm
- high frequency
- image blocks
- feature vectors
- higher quality
- macroblock
- optical flow
- frequency domain
- three dimensional