Manifold based Sparse Representation for robust expression recognition without neutral subtraction.
Raymond W. PtuchaGrigorios TsagkatakisAndreas E. SavakisPublished in: ICCV Workshops (2011)
Keyphrases
- sparse representation
- expression recognition
- dictionary learning
- norm minimization
- sparse coding
- face recognition
- illumination variations
- compressive sensing
- facial expressions
- facial expression recognition
- image classification
- sparsity constraints
- high dimensional data
- recognizing facial expressions
- pose variations
- image patches
- image representation
- face images
- object tracking
- low dimensional
- dimensionality reduction
- feature space
- high dimensional
- sparse coefficients
- data sets
- multi class
- high resolution
- training data
- feature extraction
- decision trees