Discrete fractional Fourier transform based on the eigenvectors of tridiagonal and nearly tridiagonal matrices.
Magdy T. HannaNabila P. Attalla SeifM. Waleed Abd El Maguid AhmedPublished in: Digit. Signal Process. (2008)
Keyphrases
- parallel algorithm
- linear systems
- singular value decomposition
- eigenvalues and eigenvectors
- coefficient matrix
- translation invariant
- fourier transform
- covariance matrix
- image reconstruction
- principal component analysis
- affinity matrix
- fourier series
- clustering algorithm
- frequency domain
- eigendecomposition
- discrete space
- shape analysis
- fourier spectrum
- correlation matrix
- discrete fourier transform
- principal components
- denoising
- multiscale