Significance of dictionary for sparse coding based face recognition.
T. ShejinAnil Kumar SaoPublished in: BIOSIG (2012)
Keyphrases
- sparse representation
- sparse coding
- face recognition
- sparse representation based classification
- dictionary learning
- sparse codes
- subspace learning
- face images
- single image super resolution
- image patches
- discriminative power
- image classification
- feature extraction
- natural images
- robust face recognition
- compressive sensing
- person re identification
- signal processing
- discriminative dictionary
- sparse approximation
- dimensionality reduction
- facial expressions
- object category recognition
- computer vision
- high dimensional data
- image representation
- principal component analysis
- manifold structure
- test images
- nearest neighbor
- high quality
- machine learning