Sparse coding of total variability matrix.
Longting XuKong-Aik LeeHaizhou LiZhen YangPublished in: INTERSPEECH (2015)
Keyphrases
- sparse coding
- natural images
- dictionary learning
- sparse representation
- linear combination
- image classification
- unsupervised learning
- generative model
- image representation
- low rank
- person re identification
- sparse codes
- image patches
- feature space
- high dimensional
- visual words
- object category recognition
- singular value decomposition
- higher order
- image retrieval
- positive definite
- object recognition
- kernel function
- em algorithm
- principal component analysis
- image features
- valued data
- feature selection
- learning algorithm