Using sparse coding for landmark localization in facial expressions.
Vittorio CuculoRaffaella LanzarottiGiuseppe BoccignonePublished in: EUVIP (2014)
Keyphrases
- sparse coding
- facial expressions
- landmark localization
- natural images
- face detection
- sparse representation
- face recognition
- facial expression recognition
- dictionary learning
- linear combination
- unsupervised learning
- image classification
- human faces
- image representation
- generative model
- face images
- image patches
- video sequences
- facial images
- subspace learning
- high dimensional
- feature space
- shift invariant
- facial features
- higher order
- visual words
- object detection
- bag of words
- image segmentation
- multiscale
- decision trees
- computer vision
- reinforcement learning
- appearance model
- feature vectors
- machine learning
- denoising
- signal processing