A multi-scale and rotation-invariant phase pattern (MRIPP) and a stack of restricted Boltzmann machine (RBM) with preprocessing for facial expression classification.
A. Sherly AlphonseK. ShankarM. J. Jeyasheela RakkiniS. AnanthakrishnanSuganya AthisayamaniA. Robert SinghR. GobiPublished in: J. Ambient Intell. Humaniz. Comput. (2021)
Keyphrases
- restricted boltzmann machine
- expression classification
- facial expression recognition
- deep learning
- facial expressions
- conditional random fields
- probabilistic graphical models
- learning algorithm
- semi supervised
- expression recognition
- facial features
- feature extraction
- loopy belief propagation
- hidden markov models
- facial images
- machine learning
- pattern recognition
- graphical models
- face detection
- texture classification
- post processing
- video sequences
- natural images
- face images
- computer vision
- principal component analysis