Orthogonal and Smooth Subspace Based on Sparse Coding for Image Classification.
Fushuang DaiYao ZhaoDongxia ChangChunyu LinPublished in: PCM (2) (2015)
Keyphrases
- sparse coding
- image classification
- subspace learning
- basis vectors
- dictionary learning
- feature extraction
- sparse representation
- visual words
- image representation
- discriminative power
- sparse codes
- bag of words
- linear subspace
- feature space
- visual recognition
- object category recognition
- low dimensional
- scene classification
- codebook generation
- bag of features
- image features
- dimensionality reduction
- pattern recognition
- high dimensional
- high dimensional data
- linear combination
- natural images
- principal component analysis
- face recognition
- multiscale
- sparse approximation
- ground truth