Dictionary learning feature space via sparse representation classification for facial expression recognition.
Zhe SunZheng-ping HuMeng WangShuhuan ZhaoPublished in: Artif. Intell. Rev. (2019)
Keyphrases
- dictionary learning
- sparse representation
- facial expression recognition
- sparse coding
- feature space
- face recognition
- facial expressions
- image classification
- dimensionality reduction
- image representation
- feature extraction
- image super resolution
- human computer interaction
- training set
- feature vectors
- compressive sensing
- image patches
- group sparsity
- high dimensional data
- sparse codes
- unsupervised learning
- high dimensional
- principal component analysis
- sparsity constraints
- low dimensional
- signal processing
- human faces
- high resolution
- machine learning
- feature selection
- decision trees
- pattern recognition
- local binary pattern
- manifold learning
- natural images
- linear combination
- facial images
- data sets
- dimension reduction
- visual words
- multiscale
- texture features
- generative model