Facial skin beautification via sparse representation over learned layer dictionary.
Xi LuXiaobin ChangXiaohua XieJianfang HuWei-Shi ZhengPublished in: IJCNN (2016)
Keyphrases
- sparse representation
- face recognition
- dictionary learning
- sparse coding
- learned dictionary
- sparse approximations
- facial expressions
- facial images
- compressive sensing
- random projections
- reconstruction error
- image patches
- image classification
- face images
- object tracking
- regularized least squares
- negative matrix factorization
- high dimensional data
- joint optimization
- human faces
- compressed sensing
- test images
- sparse reconstruction
- dimensionality reduction
- principal component analysis
- facial muscles
- image representation
- signal processing
- facial features
- norm minimization
- sparsity constraints
- sparse codes
- feature extraction
- illumination variations
- linear combination
- higher order
- pattern recognition