Keyphrases
- fourier transform
- frequency domain
- signal processing
- radon transform
- fourier domain
- salt pepper
- fourier analysis
- discrete fourier transform
- spatial domain
- log polar
- polar coordinates
- rotation invariance
- frequency spectrum
- power spectral density
- computer vision
- phase difference
- correlation function
- spectral estimation
- noise reduction
- fourier descriptors
- image compression
- image processing
- fourier coefficients