From dictionary of visual words to subspaces: Locality-constrained affine subspace coding.
Peihua LiXiaoxiao LuQilong WangPublished in: CVPR (2015)
Keyphrases
- visual words
- feature space
- visual dictionary
- soft assignment
- linear subspace
- bag of words
- subspace clusters
- low dimensional
- high dimensional data
- image classification
- bag of visual words
- image representation
- visual phrases
- sparse representation
- discriminative power
- principal component analysis
- visual vocabulary
- subspace clustering
- image features
- image retrieval
- co occurrence
- object categories
- high dimensional
- coding scheme
- visual content
- keypoints
- scene classification
- object retrieval
- sparse coding
- bag of features
- sift descriptors
- pairwise
- bag of words models
- affine invariant
- feature extraction
- set of training images
- spatial information
- affine transformation
- image registration
- data points
- dimensionality reduction
- spatial pyramid
- face recognition
- multiscale
- gaussian mixture model
- image set
- information retrieval
- nearest neighbor
- relevance feedback
- language model
- k means
- image segmentation