Collaborative Dictionary Learning and Soft Assignment for Sparse Coding of Image Features.
Jie LiuSheng TangYu LiPublished in: MMM (1) (2017)
Keyphrases
- sparse coding
- dictionary learning
- image features
- visual words
- image classification
- image representation
- bag of visual words
- bag of words
- sparse representation
- discriminative power
- group sparsity
- scene classification
- object categories
- object category recognition
- object recognition
- bag of features
- keypoints
- computer vision
- feature vectors
- sparse codes
- image content
- object retrieval
- unsupervised learning
- natural images
- linear combination
- image patches
- generative model
- scale space
- co occurrence
- high dimensional
- image regions
- action recognition
- feature space
- feature extraction
- gaussian mixture model
- high resolution
- spatial information
- pairwise