Face feature extraction for emotion recognition using statistical parameters from subband selective multilevel stationary biorthogonal wavelet transform.
R. Jeen Retna KumarM. SundaramN. ArumugamV. KavithaPublished in: Soft Comput. (2021)
Keyphrases
- wavelet transform
- subband
- feature extraction
- filter bank
- wavelet coefficients
- image compression
- image coding
- multiresolution
- wavelet decomposition
- high frequency
- wavelet filters
- multiscale
- wavelet domain
- low frequency
- facial expressions
- frequency domain
- wavelet packet
- discrete wavelet transform
- filter coefficients
- wavelet bases
- lifting scheme
- wavelet analysis
- perfect reconstruction
- wavelet basis
- generalized gaussian density
- non stationary
- subband decomposition
- image coder
- low pass
- translation invariant
- contourlet transform
- wavelet coding
- feature selection
- frequency band
- wavelet transform coefficients
- subband coding
- feature vectors
- image processing
- directional information
- face recognition
- texture retrieval
- maximum likelihood
- compression algorithm