Efficient 3D face recognition using local covariance descriptor and Riemannian kernel sparse coding.
Xing DengFeipeng DaHaijian ShaoPublished in: Comput. Electr. Eng. (2017)
Keyphrases
- sparse coding
- discriminative power
- sparse representation
- dictionary learning
- natural images
- image classification
- feature space
- linear combination
- image representation
- image patches
- unsupervised learning
- generative model
- image retrieval
- object recognition
- kernel methods
- euclidean space
- sparse codes
- visual words
- co occurrence
- image features
- high dimensional
- data analysis