Keyphrases
- short time fourier transform
- pattern analysis
- wigner distribution
- gabor filters
- feature vectors
- image copy detection
- image representation
- feature space
- gabor wavelets
- elementary functions
- gabor filtering
- wavelet transform
- speech signal
- wavelet features
- filter responses
- fisher classifier
- directional features
- energy distribution
- fast fourier transform
- genetic algorithm
- pattern recognition
- multiscale