An Adaptive Sublinear-Time Block Sparse Fourier Transform.
Volkan CevherMichael KapralovJonathan ScarlettAmir ZandiehPublished in: CoRR (2017)
Keyphrases
- fourier transform
- frequency domain
- coefficient matrix
- signal processing
- fourier analysis
- fourier domain
- radon transform
- fourier descriptors
- log polar
- fast fourier transform
- polar coordinates
- sparse representation
- row column
- power spectral density
- multiscale
- discrete fourier transform
- feature space
- computational complexity
- frequency spectrum
- phase difference
- correlation function
- high quality
- neural network