Fast and Efficient Union of Sparse Orthonormal Transform for Image Compression.
Gihwan LeeYoonsik ChoePublished in: SIGMAP (2021)
Keyphrases
- image compression
- sparse matrix
- computationally expensive
- high dimensional
- computationally efficient
- vector quantization
- image processing
- sparse coding
- subband decomposition
- transform coding
- fast fourier transform
- compressed images
- sparse data
- random projections
- discrete cosine transform
- compression ratio
- basis functions
- subband
- feature extraction