Two sufficient conditions in frequency domain for Gabor frames.
Dengfeng LiGuochang WuXiaojing ZhangPublished in: Appl. Math. Lett. (2011)
Keyphrases
- sufficient conditions
- frequency domain
- feature extraction
- spatial domain
- phase correlation
- fourier transform
- power spectrum
- asymptotic stability
- fixed point
- face recognition
- fourier domain
- log polar
- low pass
- cross correlation
- subband
- lyapunov function
- gabor filters
- denoising
- fast fourier transform
- exponential stability
- feature space
- fourier analysis
- frequency analysis
- power spectra
- discrete fourier transform
- spectrum analysis
- image sequences