Semi-supervised face image retrieval using sparse coding with identity constraint.
Bor-Chun ChenYin-Hsi KuoYan-Ying ChenKuan-Yu ChuWinston H. HsuPublished in: ACM Multimedia (2011)
Keyphrases
- sparse coding
- semi supervised
- image retrieval
- image representation
- subspace learning
- unsupervised learning
- visual words
- generative model
- dictionary learning
- sparse representation
- sparsity constraints
- natural images
- linear combination
- image classification
- feature space
- semi supervised learning
- labeled data
- bag of words
- pairwise
- multiscale
- face images
- manifold structure
- image patches
- sparse codes
- object category recognition
- object recognition
- manifold learning
- active learning
- supervised learning
- keypoints
- higher order
- visual features
- small number
- image features
- facial expressions
- object detection
- image annotation
- object categories
- metric learning
- data analysis
- learning algorithm
- low dimensional
- input data