Keyphrases
- frequency domain
- fourier transform
- spatial domain
- cross correlation
- power spectrum
- frequency analysis
- feature extraction
- denoising
- low pass
- spectral domain
- phase correlation
- subband
- fourier domain
- frequency domain analysis
- multiscale
- power spectra
- spectrum analysis
- facial asymmetry
- fourier analysis
- discrete fourier transform
- log polar
- error diffusion