Assessment of physiological states from contactless face video: a sparse representation approach.
Abdul QayyumMoona MazherAliyu NuhuAbdesslam BenzinouAamir Saeed MalikImran RazzakPublished in: Computing (2023)
Keyphrases
- sparse representation
- dictionary learning
- sparse coding
- face recognition
- image classification
- compressive sensing
- face images
- illumination variations
- video sequences
- reconstruction error
- random projections
- object tracking
- image patches
- piecewise smooth
- signal processing
- image representation
- high dimensional data
- joint optimization
- regularized least squares
- norm minimization
- compressed sensing
- sparse reconstruction
- sparse approximations
- test images
- subspace learning
- data analysis
- multiscale
- training data
- recognition algorithm
- facial expressions
- image data
- sparsity constraints
- sparse learning