Lossless JPEG Recompression for Similar Images via Frequency Domain Block Matching.
Hongwei ShaMing LuZhan MaPublished in: PCS (2024)
Keyphrases
- block matching
- frequency domain
- motion vectors
- compressed domain
- jpeg images
- dct coefficients
- spatial domain
- lossy compression
- subband
- dct domain
- bit rate
- motion estimation
- image compression
- motion compensation
- low frequency
- video compression
- lossless compression
- fourier transform
- compression ratio
- jpeg compression
- video coding
- macroblock
- video sequences
- discrete cosine transform
- optical flow
- transform domain
- compression algorithm
- reference frame
- block size
- phase correlation
- denoising
- motion field
- image quality
- inter frame
- cross correlation
- data hiding
- filter bank
- feature extraction
- computational complexity
- compressed images
- reconstructed image
- prediction error
- rate distortion
- low bit rate
- video data
- watermarking technique
- image sequences
- wavelet domain
- wavelet coefficients
- high frequency
- motion compensated
- discrete wavelet transform
- coding method
- image blocks
- visual quality
- bitstream
- image coder
- blocking artifacts
- image processing
- computer vision
- multiresolution
- video codec
- feature vectors
- bit plane