Subspace-sparsifying steerable discrete cosine transform from graph fourier transform.
Giulia FracastoroEnrico MagliPublished in: ICIP (2016)
Keyphrases
- fourier transform
- discrete cosine transform
- discrete fourier transform
- hartley transform
- frequency domain
- fast fourier transform
- image compression
- spatial domain
- transform domain
- filter bank
- dct coefficients
- signal processing
- dct domain
- fourier domain
- radon transform
- linear combination
- jpeg images
- feature space
- log polar
- high quality
- frequency spectrum
- fourier coefficients
- neural network
- discrete wavelet transform
- natural images
- similarity measure
- row column
- feature extraction