Keyphrases
- facial feature extraction
- wavelet transform
- dual tree
- multiresolution
- image compression
- wavelet coefficients
- face identification
- subband
- multiscale
- feature extraction
- facial expression recognition
- wavelet domain
- high frequency
- facial images
- face detection
- low frequency
- discrete wavelet transform
- wavelet decomposition
- wavelet packet
- facial features
- expression recognition
- shift invariant
- face recognition
- facial feature points
- wavelet filters
- denoising
- gabor wavelets
- image denoising
- image database
- wavelet features
- high resolution